Well, continuing when not saving the game results in the black screen - an known issue that shouldn't bother people because they're supposed to save at least once, hah. There is no auto save option, but I'm looking into that for in the future.
Seems the type error occurs only due to PC issues, so it's hard to determine what exactly is causing it. I think it's mostly due to your specs not being high enough (Tailor Tales seems to require 1GB of RAM at least). Probably best to play Tailor Tales with a freshly restarted computer with no other programs open to avoid the crashing.