Honcam fightstick no longer working on PS2

I modded a Honcam fightstick that worked for Ps3, Ps2 and Pc. However now it will no longer work on my PS2. I find very odd because I can still set the turbo buttons

Check your PS2 cable connections.

ok

I cracked it opened and notice that accidentally burned some wire. Would that have anything to do with it not working on the Ps2?

Yeah

Oh I guess I have to buy PCb board

You could try replacing the damage wiring first.

I dont wanna risk breaking the stick

If you are ready to replace the PCB because the PS2 side of the thing does not work, your stick is already broken.
If you are replacing the PCB, you are not risking anything on the stick by replacing some wiring.