I can't run the game and EA Help chat is disabled

I'm having trouble running my game. Problems that I think I caused by accident. My initial story comes from here ( https://answers.ea.com/t5/Mass-Effect-Legendary-Edition/PC-HELP-EA-App-won-t-let-me-Download-Install-Execute-MELE/m-p/14332596#M18730 ).

After this the game was perfect until yesterday. I was trying to unlock an achievement that is apparently bugged because I read about bugs with that everywhere. Someone on a forum suggested that they had found the solution by clearing the EA app cache to leave the record of your achievements at zero.
I think whatever Christine (the EA Help chat operator who initially solved my problem) did, I accidentally deleted it.
The game did not run again. Steam opens it without problems but EA blocks any possibility of it running.
The error message has no code or anything like that. It only says "that there is a technical error that prevents the game from starting" (image attached).
I urgently need to contact someone (preferably someone with the same willingness to help me and solve the problem that that last operator had) to help me in EA Help, BUT the options to chat with an operator disappeared from the page.
"CHAT WITH US" is simply no longer there.
I tried opening the page with other browsers.

I tried to change the topic.
I tried the "Resume case" option.
I tried other languages.
NOTHING
From one moment to the next it was no longer possible to communicate directly with EA Help.
What is happening???

Thanks in advance for the help.