Sudden readonly shares

HI
How are we all?

Seems all my shares have suddenly changed to readonly.
So this knocks out all my rockons as well.
Not sure why or how but it was working fine 2 days ago, watching a movie good as gold. come to it 4 hours later to add a tv series to Sonarr and boom, not working.
Please see the log snippet below from where i tried to change the share permissions.
Is there a ssh cmdline command i can use to do this please?

I have the latest rockstor install now. drives are 6x 4tb in raid 10, btrfs filesystem with no compression.
I have also noted the shares reported the used space incorrectly as well. If that helps any…

Thanks Heaps

Houston, we’ve had a problem.

Error running a command. cmd = [’/bin/chown’, ‘-R’, ‘admin:admin’, ‘/mnt2/backup’]. rc = 1. stdout = [’’]. stderr = [’/bin/chown: changing ownership of \xe2\x80\x98/mnt2/backup/VeeamConfigBackup/WIN-MMF4GG6AO25/WIN-MMF4GG6AO25_2016-04-27_02-14-42.bco\xe2\x80\x99: Read-only file system’, ‘/bin/chown: changing ownership of \xe2\x80\x98/mnt2/backup/VeeamConfigBackup/WIN-MMF4GG6AO25\xe2\x80\x99: Read-only file system’, ‘/bin/chown: changing ownership of \xe2\x80\x98/mnt2/backup/VeeamConfigBackup\xe2\x80\x99: Read-only file system’, ‘/bin/chown: changing ownership of \xe2\x80\x98/mnt2/backup/Backup Servers/Backup Servers.vbm\xe2\x80\x99: Read-only file system’, ‘/bin/chown: changing ownership of \xe2\x80\x98/mnt2/backup/Backup Servers\xe2\x80\x99: Read-only file system’, ‘/bin/chown: changing ownership of \xe2\x80\x98/mnt2/backup/NAS_Config/backup-2016-07-18-232555.json.gz\xe2\x80\x99: Read-only file system’, ‘/bin/chown: changing ownership of \xe2\x80\x98/mnt2/backup/NAS_Config/backup-2016-09-01-121101.json.gz\xe2\x80\x99: Read-only file system’, ‘/bin/chown: changing ownership of \xe2\x80\x98/mnt2/backup/NAS_Config\xe2\x80\x99: Read-only file system’, '/bin/chown: changing ownership of \xe2\x80\x98/mnt2/backup/rockon