In line 230 you need to specify what zone (e.g pan to zone 2 in 5)
In line 231 and 232, you need to say this:
@ EXBOYFRIEND walks to screen left in zone 2 AND CHARACTER starts walk_angry_loop
@ HANNAH walks to screen right in zone 2 AND HANNAH starts react_shocked_gasp AND HANNAH faces left
And in line 202 to 205 you need to use a % after 400 without a space (and get rid of the letters after the 0 in line 204)
I hope this helps! 