New PS5 crash randomly (more in PS5 games)

My new PS5 console constantly freezes, shutsdown suddenly. I have even replaced the liquid Metal, but nothing changes. In fact, there are days that it shutsdown 3 or 4 times, and there are days that it happens constantly. The console doesn’t have warranty because I bought it in the US and I live in Argentina. What do you recommend I do? (I’ve already tried all the software troubleshooting steps, changed the TV cable, everything, but nothing worked.)