I rely on Nextcloud solely for syncing my contacts and calendars. Everything was functioning perfectly until yesterday, during which time I made no installations or alterations whatsoever.
Suddenly, I encountered the following error:
Internal Server Error
The server was unable to complete your request.
If this happens again, please send the technical details below to the server administrator.
with so little information it is impossible to help you, please display the version of Nextcloud (docker, A.I.O, Snap, web installer…) the OS used, the database used, the complete error log , your config.php file (hiding sensitive data)…