I updated Nextcloud yesterday and installed the app Collabora Online. When saving a Word document the following error message appears:
Invalid argument supplied for foreach() at /var/www/vhosts/mydomain.com/mydomain.com/apps/serverinfo/lib/OperatingSystems/DefaultOs.php#164
The document itself is saved. I could not find any irregularity here.
Ubuntu 18.04.3 LTS
Nextcloud 19.0.0