Wappler somehow created a file outside the root (which is a bug in itself). I clicked on it to delete it and it tried opening the file and gave me this error message. The error can't be cancelled and just keeps coming back.
Even quiting and restarting Wappler opens with that error and I can't even switch projects.
@george has to look at this problem. I've checked the log and noticed the Start local copy for login.php after the save. This normally happens when you have configured a local PHP server on a different location than your project files. That is why I asked for the target setting but I don't see anything wrong there.
It is possible that the project config file contains some wrong configuration. Did you have the project configured with own Server at some time and switched it later to Wappler Local Server.
Check the file .wappler/project.json if it has under targets, the Development target should look like:
Seems like it has a localFolder property left there. Maybe before you used this target with different settings and Wappler didn't remove this.
Change it to: