Conquer is right. I suggest using
By squinting I could tell that it looks like a problem with your action files.
Action files are located in data/share/action and are loaded by the file data/share/action/list.csv
These files provide the animations for the game, such as npcs, monsters, bricks, etc.
I would say to check them (if you recently modified them). From the screenshot it looks like it may be with the ones in share/action/pc.
Good luck.