Please check the following steps to troubleshoot your inability to create or edit files on the shared drive:

• Verify if you have access to the shared drive
• Check the settings of the shared drive
• Make sure your computer is connected to the same network as the shared drive
• See if there are any modifications made to the file or folder permissions
• Check the user roles and their permissions on the shared drive
• Ensure that you have read/write/edit permissions