Apex legends code 100 for Xbox can’t sign on

Product: Apex Legends
Platform:Microsoft XBOX One
Please specify your platform model. Microsoft Xbox One
What is your gamertag/PSN ID/EA Account name? Hitmanhicksta68
Please provide your squad mates' gamertag/PSN ID/EA Account name if possible.
Which Legend were you playing (if applicable)?
Which Legends were your squad mates using (if applicable)?
Where did the issue occur? In the lobby (waiting area before the match)
Which part of the map or menu were you in? If you don't remember the exact name, please describe the area or what you were trying to do in the menu. Opening menu (press A button to continue)
What were you doing when the issue occurred? E.g. respawning a squad mate at a beacon, using an ability, a squad mate left the game. Logging into game
Did your squad mates also experience the issue? I don't know
How many matches had you played in a row before the issue occurred? 5-6 hours worth
When did this happen? (dd.mm.yy hh:mm) (05.05.19 6:30) eastern
How often does the bug occur? Every time (100%)
How severe is your issue? Major impacts to gameplay
What happens when the bug occurs? Unable to complete EA account sign in when logging into game.
What should be happening instead? Log in and proceed to main menu.
Steps: How can we find the bug ourselves? Figure out why my account won't log in.

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Tried resetting Xbox, game, and router. Nothing worked.