By 
Modern Warfare 3 players never seem to be able to enjoy a big content drop in peace without some sort of error code cropping up and threatening to erase all of your data. That’s the case with the Niamey Logan error in Modern Warfare 3 that’s cropped up with the release of Season 1.
The Season 1 update for MW3 and Warzone brings with it a number of new multiplayer maps, weapons, the Urzikstan map in Warzone, and a bunch of new story missions for MWZ. However, upon completing the update and loading up the game, a bunch of players, yours truly included, have been hit with an error message. It reads: “Error: Your data is corrupt or didn’t download properly. You must reset your rank and unlocks to continue. [Reason: Niamey Logan.] If you’ve been hit with this error, fear not, here’s what you need to know to get it fixed so you can enjoy the new season and keep your data intact.
How to Fix Niamey Logan Error in MW3 & Warzone
When you’re greeted with this error message, simply select the ‘Yes’ option to confirm you must reset your rank and unlocks to continue. This will fix the Niamey Logan error and allow you to proceed into the game.
It appears as though this is just something that comes up for all players when starting the new season. Since the error was reported, the COD Updates official X (formerly known as Twitter) account has indicated that this is an incorrect error message.
The post confirms that players can “Rest assured that your rank, unlocks, and purchases are not lost, although Loadouts, customization, and certain settings may be reset.” A hotfix has also been released by developers Sledgehammer to prevent this error from appearing for any players trying to jump into the game after the servers went live as soon as Season 1 dropped.
