Originally Posted by ~Ray

It's not the backlinks that are hurting you. Google has said for almost 20 years that backlinks will not hurt you. If so, it would be too easy for competitors to try and hurt your website.
It's either a badly written mobile script or you are outlinking to a bad neighborhood.
Put your domain into archive.org and see how your website looked the last time it ranked well. Maybe it will jog your memory about something you edited back then.

Good luck,
Ray
hardlinks.org