I just finished to defeat the slimes quest, so I went back to the tavern..but when I tried to go back to the forest I can't... There is no path available... I already tried a new game and it doesn't work either..what can I do?

If you are stuck outside the tavern, you may try to find out a red arrow when you leave the tavern. The red arrow is in the lower left.

Or you can tell me exactly where are you and you can't leave. 

Or you can see the game guide on top of the website.