The directory is not available

Dear nextcloud support,

i deployed nextcloud v 27.1.8 on kubernetes, i got this message when in enter the files "This directory is unavailable, please check the logs or contact the administrator
"
also i have these messages

Probably something basic is wrong. Missing permission or something like that. Here is a basic starting guide how to get into more details for proper troubleshooting:
https://docs.nextcloud.com/server/stable/admin_manual/issues/general_troubleshooting.html#id1