Error Renaming folder on NextCloud 12.0.5

Please delete everything above when creating your topic and provide the following:

Nextcloud version (eg, 12.0.2):12.0.5
Operating system and version (eg, Ubuntu 17.04): Ubuntu 14.04 LTS
Apache or nginx version (eg, Apache 2.4.25): Apache/2.4.7
PHP version (eg, 7.1): PHP

The issue you are facing:
Renaming a folder on NextCloud Web UI, I get “Could not rename folder” in the Web UI.

Is this the first time you’ve seen this error? (Y/N):Y

Steps to replicate it:

  1. Rename folder “2018 test” to “Testing”
  2. Get Error "Could not rename 2018 test
  3. “Testing” folder is created instead of renaming the “2018 test” folder

The output of your Nextcloud log in Admin > Logging:

Exception: {"Exception":"InvalidArgumentException","Message":"Found 1 error while validating the input provided for the DeleteObjects operation:\n[Delete] is missing and is a required parameter","Code":0,"Trace":"#0

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

The output of your Apache/nginx/system log in /var/log/____: