Foreign Teacher Legal Repercussions

Throwaway account. Not sure if this is the best sub to ask this question. I worked in Taiwan as a foreign English teacher for a year and it was one of the best ever years of my life. Left to come back to the states and go back to school around 5 months ago. A reoccurring issue I had with one of my schools while working there (I worked in public schools) was they would pay me one month, then the next state they over payed me by accident so I wouldn’t receive my full paycheck the next. It happened about 3 times but I figured maybe they just weren’t used to having a foreign teacher there. During new years of this year they said I would get a bonus and it ended up being around $20000 ntd. Fast forward to December (now) the school is stating that they over payed me with the bonus and I owe them around $32000 ntd. I’m unsure what to do at this point as I no longer have my arc and bank account and no way to send them that money back (not to mention I don’t necessarily have that much on me anyways in usd.). Any advice on how to handle this situation? And legal repercussions my school could pursue if I don’t pay them back?

Any and all assistance would be much appreciated.