There seems to be a problem with one of Roger's sprites. It's constantly marking it as missing.
Thanks for letting me know! I found the issue in the replies, and have corrected the code typo. The game should be re-uploaded with fixed code within the new few hours (since it takes my computer a while to upload these big files, and I also have to update the ones placed in my Patron folder).
EDIT: It should be fixed now!