Most have moved on, sadly...
But, as long as you know a bit of PHP, and you have the time and (especially) you have the motivation, then I'm sure you can fix it

I could do it, but I don't have the time nor motivation. And the worst thing is that after you fix it, it will eventually break in a few months and you need to fix it again (hence my lack of motivation).
However, since you are interested in it, it's a great opportunity for you to learn (both php and regular expressions), and these are skills that will help you in the long run.
I can help if you get stuck, but you need to do the leg work.
Good luck!