Yes, this is an actual error. Thank for bringing it to my attention! I just added a small debug log that will appear as a .txt in the same folder as the game, so this would help me figure out what's going wrong.
Just download the latest version and send me the debug log. Also, if you have Discord, we can talk over there. Here's my username: J̷͍̐͑͘͜a̷͔̺͘s̶̢̬̈́̃̅o̸̝̺̒̚n̶̛̼̿͘