Salem

Character stuck on a giant cricket whit a clay pot as mouse cursor, cant do nothing not even move camera or open menus.

I understand you're unable to open the menu's by clicking their buttons, but how about the shortcut keys? i.e. Does it work to open the inventory with the tab button?

If it's already burnt clay pot then it'll need some dev intervention.
Try pming CottonMather or TotalyMeow and ask for help.