I made a local "Auto Router":

It worked fine but now if I try to export my gerber file the program is showing up this:

I press yes but there are no errors visible? I think this is a bug because usually there are at least 5 DRC Errors after routing...
And this message was usually not showing up if there are no errors.
Firefox
61.0
OS X
10.13
EasyEDA
5.7.22