No errors, just the game being unable to load once I try to boot it up from the .exe icon. For clarity, my system is Windows 10 with GeForce GT 635, 8GB Ram and Intel Core i5.
do you see the loading screen come up at all?
is there any difference if you try to use the itch.io app to start?
I restarted my PC and now it runs without problems, didn't need the itch.io app for that.
Aside from that, the expanded levels are really fun and at the same time quite challenging when you play them at the maximum difficulties, and I do now realize how extremely useful the pistol shield is against hordes of enemies shooting at you or to escape tight situations.