This is caused by either:
The user not having full read/write permissions to the Dimensions library file.
The library file is set to read-only.
Note: You may not have permission to do the below, so we recommend that you speak with your IT for this.
To check library file permissions:
Navigate to C:\Program Files (x86)\Access Applications\Dimensions\Accounts\<version>
Right-click on the file Access.lbr.
Select Properties.
Click the Security tab.
Click Edit.
Now either modify the user's permissions (Or a security group the user is in) to have Full Control of the file, or add the user then give them full control.
To add a user, click Add, search for them and then select Full Control and then click OK.
Click OK to apply the changes.
If the above has been completed, and the user is still unable to log in, then it may be because the .lbr file is marked as read-only. To check and resolve that:
Navigate to C:\Program Files (x86)\Access Applications\Dimensions\Accounts\<version>
Right-click on the file Access.lbr.
Select Properties.
Untick Read Only.
Click OK to save the changes.
If the above steps do not work then return to the first set of steps above but just select the path in step one, then continue from Step 3 - this will assign Full Control for the user to the whole directory.