Nextcloud 30 warnings after upgrade

[Sanook]

@crimson

integrity check errors

Frequent Nextcloud 30 (Hub 9) update issues

Hi community, as Nextcloud 30 (Hub 9) has landed (see release intro) it’s time to bundle frequent issues into a WIKI post (everybody is welcome to add content) to help users to find solutions for frequent issues after update to NC30. This should avoid flooding forum with similar topics and help others identify and solve known issues. look at the topics with nc30 and setup_warning tags and both together Topics tagged nc30 & setup_warning …sometimes issues repeat/reoccur especially if you jump o…