Well that's happens when a shit coin enters pump and dump i suggest that avoid this kind coins since it may not recover anymore and this will lead to huge losses in investors and to those still believe with this coin, i think you should sell this before it finally dies a lot of pump and dump coins are already dead and removed in exchanges.
Matic was one of the potential altcoins that had recently been sold in Binance, and this type of fall was an unexpected change. This shows us that we should not even trust Binance. Well if an exchange like Binance didn't know that Matic was a pump-dump coin, how could the majority know? Or Binance was aware of it and shutted up for profit.