Easy Anti Cheat Internal Error Code C0000002

I'm on the same boat.. from the info I gathered is that you have to disable/uninstall Sentinel One... One of the fixes I read was to reset your pc. Which will reset the computer registry to default, and delete Sentinel One from the system.

I'm going to reset my pc tonight and hopefully that fixes the issue. I contacted Sentinel One and they were not willing to give me a removal too. 

I can't even play the game.
Refund my battle pass...

Same, been getting this issue for the last 2 weeks. 

You can fix this by adding a folder exclusion in your policy for C:\Program Files (x86)\Origin Games\Apex and set it to interoperability so that Sentinel lowers its monitoring mode on the folder.  There is risk doing this because malware can hide itself in that folder.  Setting a file hash exclusion will require constant policy changes because the file will change every time a new patch is released.

Update: On Monday I reset my PC to factory settings. I had no way of deleting Sentinel One from my registry. I had Sentinel One downloaded to my PC because of work.
I reached out to Sentinel One support and they were not willing to give me the removal tool.

After the reset, Sentinel One is no longer on the registry and Apex Legends has been running smoothly. No problems whatsoever. So I encourage those who have this error to either contact Sentinel One support first, contact your IT if it's a work computer to whitelist Easy Anti Cheat, or to reset your pc.