CSOM_MilesAsync_OpenOrfindFile("audio\ship\general_english.mstr")

and where can I find this "repair"

I right clicked Apex in the origin launcher and hit repair and it fixed my issue.

Same issue. Same fix.

In the Origin Launcher select Apex Legends and click on settings (cogwheel, next to play button). Then hit repair and wait a few minutes. Fixed this issue for me. 

or find "repair" , and the game in my library does not appear 

close and restart  origin, the game will appear in the library .

Hi, I got this problem. Fist start was strange, it just quited at loading screen. After it starts to show this error.

Engine Error
CSOM_MilesAsync_OpenOrFindFile("audio\ship\general_english.mstr")
Failed to open file; try resyncing

What should i do ?

So as I researching the problem. It turnes out that file doesent exist at all =)
Maybe the problem is that when I installing the Origin client, I choose in language tab Russian by default.