4chan X is a script that adds various features to anonymous imageboards.
You can report issues here
https://github.com/ccd0/4chan-x/issues
You may also want to see other reverse image search engine tools here http://www.akshatblog.com/reverse-image-search/
You can search images using solos and there are also many other tools for image search. You can also do this using google image search after going to advance settings.
Use this reverse image search online tool
Bing reverse image search
What line/formula/url do I have to put in the sauce part of settings to be able to use Bing reverse image search like google reverse image search?