Unknown Error // 9:3C - Portal

Product: Battlefield 2042
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number GeForce GTX 1080
Enter RAM memory size in GB 32GB
Are you using any software with an overlay? No
Which part of the game is the issue happening in? Multiplayer
Which part of the mode? Conquest
Please select your region Europe
On which server did this happen? Portal custom
When did this happen? (dd.mm.yy hh:mm) 19.11.21 16:00
Summarize your bug When starting my custom Portal experience I get an error "UNKOWN ERROR // 9:3C"
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Use Portal Experience "AAG177" click host and the error will appear
What happens when the bug occurs? Nothing
What should be happening instead? It should begin the server

‌

Just to note this portal experience worked on the 18th November 2021 

Additional Info there are 60 bots per team in a conquest match