Hello there!

As someone made me notice, there was a problem with the class assignation for the playable characters, so I proceeded to fix it as soon as I got notified.

There was also a problem in one of the levels , where Ollie obstructed the way to the boss, blocking the player from going onwards.
Since every time one boss is defeated the player is transferred to another level randomly selected, this situation happens only if you meet Ollie in the 6th level, so as a fix, talking to her once would make her move out and allow the passage to the player.
It's enough to override your files to have the fix working.

Thank you again to all of you who decided to try this and helped me looking after these bugs. Working alone in a project is not easy so I really appreciate your comments!