Without any detail, hard to say
This, really.
Crashing after 1.52 is not a widespread, common and well documented issue with the game. As such, there is no simple one size fits all easy solution to resolve your crashing issues.
You can go with what
@LeKill3rFou said as a starting point and his link to contact CDPR's support is definitely your best bet overall. If you want more help from the community, you need to provide more details. Like your PC specs, is there a common denominator between all these crashes (in terms of what is happening in-game), do your fan suddenly go nuts, is there a drop in performance prior to crashing, have you checked your temperatures, etc.
If you don't give more info, the community can only provide you with very general ways of possibly fixing your issue. They might work but it might take far longer to put your finger on the issue.