For getting into the matches and then getting banned a couple of times

I was just matching a couple of times and suddenly an error popped up when I entered the room, probably saying I "easy anti-cheat did not activate or failed to authenticate", then I re-entered the game, then it said I was A-F-K and banned me for a few minutes, and the problem repeated itself a couple of times. There was another time in between when the server went down and banned me for a few minutes as well. I don't know what it is, is it because I'm accelerating? But I've been playing Apex for more than 500 hours, and I've been using a web accelerator, because in China the latency without web accelerator is about 300ms, so I must have had the accelerator on for more than 500 hours, but just today I had this problem, and the first few games today were normal, but after a few games it started happening all the time. Also, I'm a rookie player with a K/D of less than 0.3, does EA think I'm cheating?