I think that log is saying it's trying to request info from EOS, and instead of getting a JSON response back you got an HTTP code status of 403 instead.
I found a similar issue here for a different game https://www.reddit.com/r/SatisfactoryGame/comments/l2hyod/cant_log_into_multiplayer_error_on_startup/
Seems to indicate IP ban or rate limiting from Epic? Try going to the API link in the comments and see if it gives you a 403 error there or if it gives you a JSON
I think that log is saying it's trying to request info from EOS, and instead of getting a JSON response back you got an HTTP code status of 403 instead.
I found a similar issue here for a different game https://www.reddit.com/r/SatisfactoryGame/comments/l2hyod/cant_log_into_multiplayer_error_on_startup/
Seems to indicate IP ban or rate limiting from Epic? Try going to https://api.epicgames.dev/sdk/v1/default?platformId=WIN and see if it gives you a 403 error there or if it gives you a JSON
