diff --git a/server/services/giteaAdmin.js b/server/services/giteaAdmin.js
index 0f40212..986d7e3 100644
--- a/server/services/giteaAdmin.js
+++ b/server/services/giteaAdmin.js
@@ -482,13 +482,21 @@ export async function archiveRepo(projectId, archived = true) {
   }
 
   const repoFullName = doc.repoFullName || ''
+  let repoMissing = false
   if (repoFullName.includes('/')) {
     try {
       await patchGiteaRepo(repoFullName, { archived: Boolean(archived) })
     } catch (err) {
-      const error = new Error('Gitea-Archivierung fehlgeschlagen: ' + err.message)
-      error.status = err.status || 500
-      throw error
+      // Verwaistes Projekt: Repo existiert nicht mehr in Gitea (404). Dann trotzdem
+      // nur das Appwrite-Dokument (ent)archivieren, damit es aus der Liste verschwindet.
+      if (err.status === 404) {
+        repoMissing = true
+        console.warn(`[archiveRepo] Gitea-Repo ${repoFullName} nicht gefunden (404) - nur Appwrite wird aktualisiert`)
+      } else {
+        const error = new Error('Gitea-Archivierung fehlgeschlagen: ' + err.message)
+        error.status = err.status || 500
+        throw error
+      }
     }
   }
 
@@ -498,7 +506,7 @@ export async function archiveRepo(projectId, archived = true) {
     }
   }
 
-  if (!archived && doc.subdomain) {
+  if (!archived && !repoMissing && doc.subdomain) {
     try {
       const branch = (await getRepoInfo(repoFullName))?.defaultBranch || 'main'
       const cfg = (await fetchPreviewConfig(repoFullName, branch)) || {