Need some help ^^

1. how do i turn my comments pink again, currently they've turned orange whilst i was trying to organize my code ;-;

2. every time i try to add a new stamp/ probably any image and save, i get 502 bad gateway, this doesn't apply to when i add blinkies or anything in other boxes, just the box i have stamps in. 

any ideas would be appreciated! I'm not a coder or anything so i just fix things with guesswork usually but i cant make the 502 error go away

edit: i now get 502 bad gateway when i try to add blinkies too