Sounds like a file location issue. It's also possible that an update to your anti-virus may have changed something, blocking SwordSearcher from using its files, but that is just a guess.
Open File Explorer in Windows, go to your Documents folder, and look for SwordSearcher User Modules. Are they in there?
I have also seen weird things happen to files stored in cloud storage areas, but that shouldn't happen in the default location for user modules.
If you go to the Help menu and choose Module Load Error Log, it will give you reasons for not being able to edit your user modules. Almost always, this is due to a file issue on the computer.