Can you read/write to the disks as root? If so, then something has likely gone sideways with your fstab entry. For example, the device name, order, or UID/GID may have changed, depending on how you've configured the entry.
It's difficult to assist much more without seeing the contents of /etc/fstab
.
Your fstab file can remain unchanged and still fail, if the drive or user identifiers have changed unexpectedly. It depends on how you've configured your fstab entries, which is why it's helpful to share them. In future, no one will be able to offer much assistance without seeing the entry details. Either way, glad you were able to get it sorted!