It looks as though you’re running a Windows node and the StorJ service doesn’t have full access to the F: drive for writing. Check in services.msc which account is used to run the storagenode and that the same account has full permissions on F: drive.
Did you check in services and see which account is being used? It’s most likely running as ‘system’ , ‘local system’ or ‘network service’. Then look at the ‘Security’ permissions on the F: drive from ‘This PC’.
i have found that f:/ was using sys admin and that did not have full access so i have just made that change and will test over the next 24 hour period. but it is still off that it only happens once every 24 hours and a system restart bring the node back only and the error has cleared.