I’ve set the PHP from 7.0 to 7.1 because WebDav does have a problem with file uploading. (other threat)
With PHP 7.1 enabled everything is working but the server gives a Physical Memory Usage of 436MB!
I have 512 MB available so 85% is directly used by NC.
Can I see where or what process is using up this memory?
When I close NC client, the memory use is gone!