Ok, just updating the situation.
Recently reading trough the wiki, i found that is not recomended to use Orion content blocker in conjunction with Ublock origin (the only extension im using atm).
So, i disabled the Orion Content blocker (after using it as primary content blocker i found that on some sites it let pass some spam pages)), and im using only Ublock Origin.
Deleted Whatsapp cache and cookies, and im on the third day connected with no issues. Also, a lot of other pages start to function properly after that (only HBOmax not working).
Edit: seems like some curse. After i make this post the problem happens again