diff --git a/backend/src/routes/oauth2/authorize.ts b/backend/src/routes/oauth2/authorize.ts
index 3316b8b..a37b0d5 100644
--- a/backend/src/routes/oauth2/authorize.ts
+++ b/backend/src/routes/oauth2/authorize.ts
@@ -18,17 +18,28 @@ export default function registerAuthorize(server: MyFastifyInstance): void {
   ) => {
     if (!isObject(request.query)) {
       server.log.warn('Request query is not an object');
-      throw server.httpErrors.badRequest();
+      await reply.redirect(urlJoin(
+        websitePrefix,
+        `/prompt-error?code=invalid_request&description=${
+          encodeURIComponent('Request query is not an object')
+        }`,
+      ));
+      return;
     }
     try {
       validateParam('client_id', request.query.client_id);
       validateParam('redirect_uri', request.query.redirect_uri);
     } catch (error) {
       if (error instanceof ParamError) {
-        throw server.httpErrors.badRequest(error.message);
+        await reply.redirect(urlJoin(
+          websitePrefix,
+          `/prompt-error?code=invalid_request&description=${encodeURIComponent(error.message)}`,
+        ));
+        return;
       }
       server.log.error(error);
-      throw server.httpErrors.internalServerError();
+      await reply.redirect(urlJoin(websitePrefix, '/prompt-error?code=internal'));
+      return;
     }
 
     const application = await database.applicationRepo.findOne({
@@ -36,8 +47,14 @@ export default function registerAuthorize(server: MyFastifyInstance): void {
         clientId: request.query.client_id,
       },
     });
-    if (application === undefined) throw server.httpErrors.badRequest('Unknown application');
-    if (!application.redirectUris.includes(request.query.redirect_uri)) throw server.httpErrors.badRequest('Redirect URI not registered');
+    if (application === undefined) {
+      await reply.redirect(urlJoin(websitePrefix, '/prompt-error?code=unknown_application'));
+      return;
+    }
+    if (!application.redirectUris.includes(request.query.redirect_uri)) {
+      await reply.redirect(urlJoin(websitePrefix, '/prompt-error?code=unknown_redirect_uri'));
+      return;
+    }
 
     try {
       validateParam('response_type', request.query.response_type);
diff --git a/website/.eslintrc.js b/website/.eslintrc.js
index 1537043..a42a333 100644
--- a/website/.eslintrc.js
+++ b/website/.eslintrc.js
@@ -23,5 +23,11 @@ module.exports = {
         'max-len': ['off']
       },
     },
+    {
+      files: '**/*.vue',
+      rules: {
+        'class-methods-use-this': ['off']
+      }
+    }
   ],
 };
diff --git a/website/src/compontents/dialog-app.vue b/website/src/compontents/dialog-app.vue
new file mode 100644
index 0000000..db65523
--- /dev/null
+++ b/website/src/compontents/dialog-app.vue
@@ -0,0 +1,35 @@
+<template>
+  <v-app class="dialog-app">
+    <div>
+      <div class="text-h4 text-center mt-8 mx-2">
+        <span class="primary--text">Wulkanowy</span> Bridge
+      </div>
+    </div>
+    <v-main class="px-4">
+      <v-sheet max-width="500" class="mx-auto mt-16" color="transparent">
+        <slot />
+      </v-sheet>
+    </v-main>
+  </v-app>
+</template>
+
+<script lang="ts">
+import { Component, Vue } from 'vue-property-decorator';
+
+@Component({
+  name: 'DialogApp',
+})
+export default class DialogApp extends Vue {
+
+}
+</script>
+
+<style lang="scss">
+  .dialog-app {
+    background-color: #f7f7f7 !important;
+
+    .v-card__text, .v-card__title {
+      word-break: normal;
+    }
+  }
+</style>
diff --git a/website/src/pages/authenticate-prompt/app.vue b/website/src/pages/authenticate-prompt/app.vue
index 0054819..13ad8c4 100644
--- a/website/src/pages/authenticate-prompt/app.vue
+++ b/website/src/pages/authenticate-prompt/app.vue
@@ -1,107 +1,96 @@
 <template>
-  <v-app class="authenticate-prompt-app">
-    <div>
-      <div class="text-h4 text-center mt-8">
-        <span class="primary--text">Wulkanowy</span> Bridge
-      </div>
+  <dialog-app class="authenticate-prompt-app">
+    <v-alert type="error" text v-if="!promptId">
+      Brak wymaganego parametru <code>prompt_id</code>
+    </v-alert>
+    <v-alert type="error" text v-else-if="promptInfoError">
+      Nie udało się wczytać danych
+      <template #append>
+        <v-btn text color="error" @click="loadPromptInfo">
+          Spróbuj ponownie
+        </v-btn>
+      </template>
+    </v-alert>
+    <div class="d-flex align-center justify-center mt-16 mb-16" v-else-if="!promptInfo">
+      <v-progress-circular indeterminate :size="96" color="primary" />
     </div>
-    <v-main class="px-4">
-      <v-sheet max-width="500" class="mx-auto mt-16" color="transparent">
-        <v-alert type="error" text v-if="!promptId">
-          Brak wymaganego parametru <code>prompt_id</code>
-        </v-alert>
-        <v-alert type="error" text v-else-if="promptInfoError">
-          Nie udało się wczytać danych
-          <template #append>
-            <v-btn text color="error" @click="loadPromptInfo">
-              Spróbuj ponownie
-            </v-btn>
-          </template>
-        </v-alert>
-        <div class="d-flex align-center justify-center mt-16 mb-16" v-else-if="!promptInfo">
-          <v-progress-circular indeterminate :size="96" color="primary" />
-        </div>
-        <template v-else>
-          <div class="pb-1 text--secondary">
-            Krok <span class="primary--text">{{ step }}/3</span>
-          </div>
-          <v-card outlined>
-            <div class="d-flex justify-center mn-16 avatar__wrapper">
-              <v-badge
-                :color="promptInfo.application.verified ? 'green' : 'grey'"
-                offset-x="64"
-                offset-y="16"
-                bottom
-                :content="promptInfo.application.verified ? 'Zweryfikowana' : 'Niezweryfikowana'"
-                :value="step === 1"
+    <template v-else>
+      <div class="pb-1 text--secondary">
+        Krok <span class="primary--text">{{ step }}/3</span>
+      </div>
+      <v-card outlined>
+        <div class="d-flex justify-center mn-16 avatar__wrapper">
+          <v-badge
+            :color="promptInfo.application.verified ? 'green' : 'grey'"
+            offset-x="64"
+            offset-y="16"
+            bottom
+            :content="promptInfo.application.verified ? 'Zweryfikowana' : 'Niezweryfikowana'"
+            :value="step === 1"
+          >
+            <transition name="scale">
+              <v-sheet
+                v-if="step === 1"
+                width="128"
+                height="128"
+                class="avatar-sheet mx-4 overflow-hidden"
+                outlined
               >
-                <transition name="scale">
-                  <v-sheet
-                    v-if="step === 1"
-                    width="128"
-                    height="128"
-                    class="avatar-sheet mx-4 overflow-hidden"
-                    outlined
+                <v-sheet
+                  class="fill-height d-flex align-center justify-center"
+                  :color="promptInfo.application.iconColor"
+                >
+                  <v-img
+                    :src="promptInfo.application.iconUrl"
+                    width="80"
+                    height="80"
+                    aspect-ratio="1"
+                    contain
                   >
-                    <v-sheet
-                      class="fill-height d-flex align-center justify-center"
-                      :color="promptInfo.application.iconColor"
-                    >
-                      <v-img
-                        :src="promptInfo.application.iconUrl"
-                        width="80"
-                        height="80"
-                        aspect-ratio="1"
-                        contain
-                      >
-                        <template v-slot:placeholder>
-                          <div class="fill-height d-flex align-center justify-center">
-                            <v-icon :size="80">
-                              mdi-help
-                            </v-icon>
-                          </div>
-                        </template>
-                      </v-img>
-                    </v-sheet>
-                  </v-sheet>
-                </transition>
-              </v-badge>
-            </div>
-            <v-window :value="step">
-              <v-window-item :value="1">
-                <overview-window
-                  :promptInfo="promptInfo"
-                  @next="toLoginWindow"
-                />
-              </v-window-item>
-              <v-window-item :value="2" eager>
-                <login-window
-                  ref="loginWindow"
-                  :prompt-info="promptInfo"
-                  @login="login"
-                  @back="loginBack"
-                />
-              </v-window-item>
-              <v-window-item :value="3">
-                <students-window
-                  v-if="students !== null"
-                  :prompt-info="promptInfo"
-                  :students="students"
-                  @back="toLoginWindow"
-                />
-              </v-window-item>
-            </v-window>
-          </v-card>
-        </template>
-      </v-sheet>
-    </v-main>
-  </v-app>
+                    <template v-slot:placeholder>
+                      <div class="fill-height d-flex align-center justify-center">
+                        <v-icon :size="80">
+                          mdi-help
+                        </v-icon>
+                      </div>
+                    </template>
+                  </v-img>
+                </v-sheet>
+              </v-sheet>
+            </transition>
+          </v-badge>
+        </div>
+        <v-window :value="step">
+          <v-window-item :value="1">
+            <overview-window
+              :promptInfo="promptInfo"
+              @next="toLoginWindow"
+            />
+          </v-window-item>
+          <v-window-item :value="2" eager>
+            <login-window
+              ref="loginWindow"
+              :prompt-info="promptInfo"
+              @login="login"
+              @back="loginBack"
+            />
+          </v-window-item>
+          <v-window-item :value="3">
+            <students-window
+              v-if="students !== null"
+              :prompt-info="promptInfo"
+              :students="students"
+              @back="toLoginWindow"
+            />
+          </v-window-item>
+        </v-window>
+      </v-card>
+    </template>
+  </dialog-app>
 </template>
 
 <style lang="scss">
   .authenticate-prompt-app {
-    background-color: #f7f7f7 !important;
-
     .avatar-sheet {
       border-radius: 50%;
     }
@@ -122,10 +111,6 @@
     .scale-enter, .scale-leave-to {
       transform: scale(0);
     }
-
-    .v-card__text, .v-card__title {
-      word-break: normal;
-    }
   }
 </style>
 
@@ -136,10 +121,13 @@ import { PromptInfo, Student } from '@/types';
 import LoginWindow from '@/compontents/authenticate-prompt-windows/login-window.vue';
 import StudentsWindow from '@/compontents/authenticate-prompt-windows/students-window.vue';
 import { sdk } from '@/pages/authenticate-prompt/sdk';
+import DialogApp from '@/compontents/dialog-app.vue';
 
 @Component({
   name: 'AuthenticatePromptApp',
-  components: { LoginWindow, OverviewWindow, StudentsWindow },
+  components: {
+    LoginWindow, OverviewWindow, StudentsWindow, DialogApp,
+  },
 })
 export default class AuthenticatePromptApp extends Vue {
   @Ref() readonly loginWindow!: LoginWindow
diff --git a/website/src/pages/prompt-error/app.vue b/website/src/pages/prompt-error/app.vue
new file mode 100644
index 0000000..b32e6c9
--- /dev/null
+++ b/website/src/pages/prompt-error/app.vue
@@ -0,0 +1,48 @@
+<template>
+  <dialog-app>
+    <v-card outlined>
+      <v-card-title>Podczas autoryzacji wystąpił błąd</v-card-title>
+      <v-card-text>
+        <v-alert text type="error">
+          {{ errorMessage }}<br>
+          <code
+            v-if="errorDescription !== null"
+            class="d-block mt-3 py-2 px-sm-3"
+          >
+            {{ errorDescription }}
+          </code>
+        </v-alert>
+        Skontaktuj się z twórcą aplikacji w celu rozwiązania problemu
+      </v-card-text>
+    </v-card>
+  </dialog-app>
+</template>
+
+<script lang="ts">
+import { Component, Vue } from 'vue-property-decorator';
+import DialogApp from '@/compontents/dialog-app.vue';
+
+@Component({
+  name: 'PromptErrorApp',
+  components: { DialogApp },
+})
+export default class PromptErrorApp extends Vue {
+  errorCode: string | null = null;
+
+  errorDescription: string | null = null;
+
+  get errorMessage() {
+    if (this.errorCode === 'invalid_request') return 'Niepoprawny format zapytania';
+    if (this.errorCode === 'internal') return 'Błąd serwera';
+    if (this.errorCode === 'unknown_application') return 'Nie znaleziono aplikacji';
+    if (this.errorCode === 'unknown_redirect_uri') return 'Niepoprawne URI przekierowania';
+    return 'Nieznany błąd';
+  }
+
+  async created() {
+    const searchParams = new URLSearchParams(window.location.search);
+    this.errorCode = searchParams.get('code');
+    this.errorDescription = searchParams.get('description');
+  }
+}
+</script>
diff --git a/website/src/pages/prompt-error/main.ts b/website/src/pages/prompt-error/main.ts
new file mode 100644
index 0000000..15117df
--- /dev/null
+++ b/website/src/pages/prompt-error/main.ts
@@ -0,0 +1,10 @@
+import Vue from 'vue';
+import vuetify from '@/plugins/vuetify';
+import AuthenticatePromptApp from './app.vue';
+
+Vue.config.productionTip = false;
+
+new Vue({
+  vuetify,
+  render: (h) => h(AuthenticatePromptApp),
+}).$mount('#app');
diff --git a/website/vue.config.js b/website/vue.config.js
index 3611cb9..8895adb 100644
--- a/website/vue.config.js
+++ b/website/vue.config.js
@@ -7,7 +7,13 @@ module.exports = {
       entry: 'src/pages/authenticate-prompt/main.ts',
       template: 'public/index.html',
       filename: 'authenticate-prompt.html',
-      title: 'Authorize application | Wulkanowy Bridge',
+      title: 'Autoryzuj aplikację | Wulkanowy Bridge',
+    },
+    'prompt-error': {
+      entry: 'src/pages/prompt-error/main.ts',
+      template: 'public/index.html',
+      filename: 'prompt-error.html',
+      title: 'Błąd autoryzacji | Wulkanowy Bridge',
     },
   },
 };