Please also see PHP deprecation warning in my Nextcloud installation by @babaluga
For me, this is still an issue.
Document Server version: 9.31.10
Type of installation of the Document Server (docker, deb/rpm, exe, please point us to the installation guide that you used as well): docker (GitHub - nextcloud/docker: A community maintained docker micro-image for deploying Nextcloud on container platforms · GitHub)
Connector version: 10.0.0
OS: Debian Trixie, x86_64
Browser version: Firefox 150
Additional information:
Log output:
{"reqId":"UfAJZK7lWHKbqbAIMvFv","level":3,"time":"2026-05-03T06:43:37+00:00","remoteAddr":"xxx.xxx.xxx.xxx","user":"xxx","app":"PHP","method":"GET","url":"/ocs/v2.php/cloud/capabilities?format=json","scriptName":"/ocs/v2.php","message":"OCA\\Onlyoffice\\FileCreator::create(): Implicitly marking parameter $templateId as nullable is deprecated, the explicit nullable type must be used instead at /var/www/html/custom_apps/onlyoffice/lib/FileCreator.php#145","userAgent":"Mozilla/5.0 (Android) Nextcloud-android/33.1.0","version":"33.0.3.2","data":{"app":"PHP"},"id":"69f6f717b2737"}
This error appears more or less every 24 hours. The user agent can be the Nextcloud app or the Nextcloud Talk app.