I think we need a little more info, have you tried any of the suggestions above?
Is this an ESXi on ARM specific issue, if not I can move this thread to the general ESXi section.
Is this local or shared storage, I see it is block storage?
Can you confirm there is free space on the datastore, I see it is a VMFS volume called Data, can you write new files to the datastore? (try the touch command in the ESX DCUI/SSH)
Have you run a VOMA check? This would check the Meta data consistency for the volume... it would also guide you on if there are stale/orphaned locks. Again I'm only suggesting a check run... (voma -m vmfs -f check -d /vmfs/devices/disks/naa.xxxx:x)
Please let us know as we are all really excited to help out!