Actually, if you have the itch app installed, try this:
Open the MewnBase page in the app. You should see the red "Launch" button, "Uninstall" options etc on the right side of the screen.
Near the bottom one of the buttons should say "Version 0.30 (mewnbase-win32.zip)" -- Right click on that, should open a little context menu -> Advanced -> View Logs...
Email me the contents to cairn4games@gmail.com - and I'll take a look asap to see what might be going on.
Thanks