In Red Dead Redemption 2, the 0x20010006 error is quite rare, but if it happens, it can significantly spoil the impression of the process. If the game still crashes with this bug, then there is a fairly simple and most effective way to solve this problem. It consists in simply restarting the game. In most cases, you do not need to do anything else, the game will work and you can continue.
If this did not help and the error 0x20010006 was thrown again in RDR 2, another way to fix it. You just need to wait for some time, but not less than 10 minutes. After that, go back to online mode and everything will work. The fact is that this is a server error that does not depend on the player in any way and it usually happens in a fairly short period and after that access is restored again.