diff --git a/app.py b/app.py
index 2dde1bf..871c7dc 100644
--- a/app.py
+++ b/app.py
@@ -365,8 +365,17 @@ def run_backup():
         return jsonify({"error": "Unknown script"}), 400
 
     # Run in background
-    subprocess.Popen([scripts[script]], stdout=open("/root/backup.log", "a"), stderr=subprocess.STDOUT)
-    return jsonify({"ok": True, "message": f"{script} backup started"})
+    import traceback
+    try:
+        proc = subprocess.Popen(
+            [scripts[script]],
+            stdout=open("/root/backup.log", "a"),
+            stderr=subprocess.STDOUT,
+            cwd="/root"
+        )
+        return jsonify({"ok": True, "message": f"{script} backup started", "pid": proc.pid})
+    except Exception as e:
+        return jsonify({"error": str(e), "trace": traceback.format_exc()}), 500
 
 # ──────────────────────────────────────────────
 # STATIC & LOGS