diff --git a/ui/src/components/Calendar.vue b/ui/src/components/Calendar.vue
index 5f074bf..0590ffb 100644
--- a/ui/src/components/Calendar.vue
+++ b/ui/src/components/Calendar.vue
@@ -107,7 +107,7 @@ export default class extends Vue {
         this.multi_modal!.show_image(image_src, this.$advent22.name_door(day));
       })
       .catch((error) => {
-        alert(error);
+        this.$advent22.alert_user_error(error);
         this.multi_modal!.hide();
       });
   }
diff --git a/ui/src/components/admin/DoorMapEditor.vue b/ui/src/components/admin/DoorMapEditor.vue
index b8e0ba6..f1f21ce 100644
--- a/ui/src/components/admin/DoorMapEditor.vue
+++ b/ui/src/components/admin/DoorMapEditor.vue
@@ -73,6 +73,7 @@ import { DoorSaved } from "@/lib/api";
 import { Door } from "@/lib/door";
 import { Options, Vue } from "vue-class-component";
 
+import { toast } from "bulma-toast";
 import Calendar from "../Calendar.vue";
 import BulmaBreadcrumbs, { Step } from "../bulma/Breadcrumbs.vue";
 import BulmaButton from "../bulma/Button.vue";
@@ -149,7 +150,7 @@ export default class extends Vue {
       this.loading_doors = true;
 
       this.load_doors()
-        .then(() => alert("Erfolgreich!"))
+        .then(() => toast({ message: "Erfolgreich!", type: "is-success" }))
         .catch(() => {})
         .finally(() => (this.loading_doors = false));
     }
@@ -169,7 +170,7 @@ export default class extends Vue {
       this.save_doors()
         .then(() => {
           this.load_doors()
-            .then(() => alert("Erfolgreich!"))
+            .then(() => toast({ message: "Erfolgreich!", type: "is-success" }))
             .catch(() => {})
             .finally(() => (this.saving_doors = false));
         })
diff --git a/ui/src/plugins/advent22.ts b/ui/src/plugins/advent22.ts
index a3aba49..55f53cf 100644
--- a/ui/src/plugins/advent22.ts
+++ b/ui/src/plugins/advent22.ts
@@ -1,4 +1,5 @@
 import axios, { AxiosError, AxiosInstance, ResponseType } from "axios";
+import { toast } from "bulma-toast";
 import { App, Plugin } from "vue";
 import { advent22Store } from "./store";
 
@@ -78,7 +79,10 @@ export class Advent22 {
   }
 
   public alert_user_error(param: [unknown, string]): void {
-    alert(this.format_user_error(param));
+    toast({
+      message: this.format_user_error(param),
+      type: "is-danger",
+    });
   }
 
   public api_url(): string;