The logs complains about redis
"RedisException","message": "Connection refused"
at the same time it looks you don’t have redis in place
"memcache.locking": "\\OC\\Memcache\\APCu"
According to docs memcache.locking is supposed to be Redis.. while not really clear if Redis is the only supported option Clarification: Is APCu acceptable for `memcache.locking`? · Issue #43895 · nextcloud/server · GitHub I would try Redis or nothing (database)
Did you change something shortly?
UPDATE: same error due to invalid redis config: Redis verursacht Fehler / Nextcloud 32.0.1 bei all inkl