# Proxmox: TASK ERROR: API Return-Code: 500. Message: Could not rollback cluster wide snapshot

**URL:** https://forums.linbit.com/t/proxmox-task-error-api-return-code-500-message-could-not-rollback-cluster-wide-snapshot/690
**Category:** LINSTOR
**Tags:** drbd
**Created:** [March 24, 2025, 7:52am UTC](https://forums.linbit.com/t/proxmox-task-error-api-return-code-500-message-could-not-rollback-cluster-wide-snapshot/690 "2025-03-24T07:52:06Z")
**Posts on this page:** 1
**Showing post:** 11

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### Author: ![c.duchenoy](https://yyz1.discourse-cdn.com/flex003/user_avatar/forums.linbit.com/c.duchenoy/32/137_2.png) [@c.duchenoy](https://forums.linbit.com/u/c.duchenoy)
#### Post date: [March 25, 2025, 11:41am UTC](https://forums.linbit.com/t/proxmox-task-error-api-return-code-500-message-could-not-rollback-cluster-wide-snapshot/690/11 "2025-03-25T11:41:55Z")

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Hi,

In production, we use older versions of the Linstor stack, but I don’t think that’s the problem.

However, I believe that the snaps on the drbd side should be lowercase. See: [Snapshots only lowercase](https://forums.linbit.com/t/snapshots-only-lowercase/444)

You can enable “DEBUG=true” mode in the script for more information.

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