XDefiant has just officially released, and with it comes a bunch of new and annoying error codes to deal with. The DELTA-01 error in XDefiant will kick you off the server when you try to join a match, making it one of the most annoying bugs in the game.
How to Fix XDefiant Error Code DELTA-01 | Error Code DELTA-01 Fixed
Even if a game is perfect in terms of source code, it can still encounter server-side errors. Expected content releases and similar rollouts cause huge influxes in player numbers and trigger server-side errors like DELTA 01.
The DELTA-01 error occurs when the connection between your device and the XDefiant servers times out. Simply put, the game is trying to communicate with the server, but is not receiving a response within the expected time frame.
Most of the time, this is due to server-side issues, not your internet connection. This means that the solution is likely to be with the developer or publisher, not the end user.