# Database error upgrading from 27 to 28 **URL:** \ **Category:** 📦 Appliances (Docker, Snappy, VM, NCP, AIO)\ **Tags:** update\_problems, docker\ **Created:** [December 14, 2023, 11:41am UTC](https://help.nextcloud.com/t/database-error-upgrading-from-27-to-28/176633 "2023-12-14T11:41:01Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Commerzpunk](https://help.nextcloud.com/letter_avatar/commerzpunk/32/5_5575768a8748004e209b776fc1b2916d.png) [@Commerzpunk](https://help.nextcloud.com/u/Commerzpunk)\ **Post date:** [December 14, 2023, 11:41am UTC](https://help.nextcloud.com/t/database-error-upgrading-from-27-to-28/176633/1 "2023-12-14T11:41:01Z")
Hello, my docker environment just made an update and should have pdated NC from V 27 to V 28. It did not, but showing up this error: using keys found in /config/keys Initializing nextcloud 28.0.0.11 (this can take a while) … Upgrading nextcloud from 27.1.4.1 … Setting permissions Setting log level to debug Turned on maintenance mode Updating database schema Exception: Database error when running migration 28000Date20230906104802 for app core Index name “lock\_ttl\_index” for table “oc\_file\_locks\_org” collides with the constraint on table “oc\_file\_locks”. Update failed Maintenance mode is kept active Resetting log level Initializing finished Strange enough, I cant find any results from google, github or the forum for this. Who can advice help? ---
**Author:** ![Commerzpunk](https://help.nextcloud.com/letter_avatar/commerzpunk/32/5_5575768a8748004e209b776fc1b2916d.png) [@Commerzpunk](https://help.nextcloud.com/u/Commerzpunk)\ **Post date:** [December 14, 2023, 12:12pm UTC](https://help.nextcloud.com/t/database-error-upgrading-from-27-to-28/176633/2 "2023-12-14T12:12:08Z")
Oh wait, after some investigation, I figured out, that \_org table was a copy that i once made for myself. No more need to keep it. After dropping it, the update went fine. ---
**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\ **Post date:** [December 14, 2024, 1:23pm UTC](https://help.nextcloud.com/t/database-error-upgrading-from-27-to-28/176633/3 "2024-12-14T13:23:46Z")