When a company file is open, a temporary file called a lock file is created in the folder where the company file is stored. This file, called Lock000*.flk, keeps track of who is using the company file.
When you log out of the company file, the lock file is deleted automatically. Sometimes, however, the lock file is not deleted. This can happen if your computer crashes or an error causes your company file to close unexpectedly. Lock files can accumulate in the company file folder, resulting in error messages appearing when you try to access your company file again.
The following things can also cause this issue. Check each and rectify if applicable:
The name of the Macintosh hard disk cannot contain a full stop, exclamation mark, or other invalid character.
The name of the company file cannot contain more than 31 characters (27 characters plus .myo).
The name of the folder containing the company file cannot be more than 27 characters long.
The path to your company file location (hard disk name + folder names + company file name) cannot be more than 128 characters.
Ensure all users are logged out of the company file.
Select Find from the computer File menu (or press Command + F).
In the search field enter .flk and click the Enter key.
Drag and drop all lock files located in the same folder as your company file, for example Lock0001, Lock0002, etc., in the Trash or hold down the Ctrl key, click the file and select Move to Trash.
