Troubleshooting swShell FileLauncher Errors An error occurred while trying to open your file. Please contact Technical Support for assistance.

Hello everyone, I'm using SolidWorks 2018, and when I finish drawing an assembly drawing, close the file, and then reopen it, I get this error: swShell FileLauncher An error occurred while trying to open your file. Please contact Technical Support for assistance. I would greatly appreciate your help. Thank you very much.