No need for function

app/Models/Server.php

@@ -387,17 +387,4 @@ class Server extends Model
             throw new DaemonConnectionException($exception);
         }
     }
-
-    /**
-     * Determines if too many backups have been generated by the server.
-     */
-    public function getBackupsGeneratedDuringTimespan(int $seconds = 600): array|Collection
-    {
-        return $this
-            ->backups()
-            ->where(fn ($query) => $query->whereNull('completed_at')->orWhere('is_successful', true))
-            ->where('created_at', '>=', now()->subSeconds($seconds))
-            ->withTrashed()
-            ->get();
-    }
 }

app/Services/Backups/InitiateBackupService.php

@@ -76,7 +76,13 @@ class InitiateBackupService
         $limit = config('backups.throttles.limit');
         $period = config('backups.throttles.period');
         if ($period > 0) {
-            $previous = $server->getBackupsGeneratedDuringTimespan($period);
+            $previous = $server
+                ->backups()
+                ->where('created_at', '>=', now()->subSeconds($period))
+                ->nonFailed()
+                ->withTrashed()
+                ->get();
+
             if ($previous->count() >= $limit) {
                 $message = sprintf('Only %d backups may be generated within a %d second span of time.', $limit, $period);