internal error: unexpected error writing points to database: opening shard previously failed with: [shard 31] open .: permission denied

I dont know what's wrong with the error msg.
Every thing looks like is right. the data dir and subdir permition is influxdb:influxdb , the influxdb progress is running by user influxdb.
I dont know which permission denied.

InfluxDB v2.7.6 (git: 3c58c06206) build_date: 2024-04-12T21:51:21Z

The report names no source files, tests, or entry points; start by reproducing the shard-open failure from the supplied InfluxDB v2.7.6 details and tracing which filesystem path returns permission denied. Done would require identifying the failing path and defining a clear diagnostic or confirmed fix, but the issue does not specify the expected behavior.

Written by the indexing model from the issue text.