diff --git a/lib/proxmox.js b/lib/proxmox.js
index 23799b3..283c063 100644
--- a/lib/proxmox.js
+++ b/lib/proxmox.js
@@ -271,7 +271,7 @@ class ProxmoxUtils {
             this.adapter.log.debug(`received ${response.status} response from ${pathU} with content: ${JSON.stringify(response.data)}`);
 
             if ([500, 595, 599].includes(response.status)) {
-                throw `${response.status} - ${response.data}`;
+                throw `${response.status} - ${JSON.stringify(response)}`;
             }
 
             if (response.status === 401 && !retry) {