PS4 error code 300 after every game

Hitashy

I play on ps4 and it's been 3-4 days I consistently ( 8 times out of 10 ) get this error code 300 in the endgame menu where you see everyone's perks ect. There is the loading icon on top and it put me back into the "press x to start" menu. The weird thing is that my internet works perfectly and I have no issue at all in game. It seems to save my bloodpoints after the bug but not my challenge progress.

I have tried to uninstall reinstall the game, change date and hour of my console, reboot my internet, reboot my console, switching from Lan to wi fi internet, even playing on 4g. I don't understand please help