CoD MW3: How to Fix “Your Data is Corrupted” Niamey Logan Error

When players first log into Call of Duty: Modern Warfare 3 Season 1, they might encounter a Niamey Logan error saying their data is corrupt and “You must reset your rank and unlocks to continue.” Thankfully, fixing the Niamey Logan error is simple and relatively painless, though a bit inconvenient.

How to Fix the Niamey Logan Error in Modern Warfare 3

The Niamey Logan error is actually much more bark than it is bite. While it claims your rank and unlocks will be reset, that won’t actually happen. To fix the Niamey Logan error, simply select “Yes” when prompted and progress to the main menu screen. You should still be at whatever rank you were before the start of MW3 Season 1 and all your unlocks will still be…unlocked. The official Call of Duty Updates channel has an announcement on the matter as well.

📢 #MW3 #WarzonePlayers logging into Season 1 may see an incorrect error message stating their data is corrupt. Rest assured that your rank, unlocks, and purchases are not lost, although Loadouts, customization, and certain settings may be reset.

— Call of Duty Updates (@CODUpdates) December 6, 2023

I admit, like so many in the Call of Duty community, I was incredibly concerned that my hours of grinding would have vanished in so much smoke because of a simple coding issue with the game. The only thing that did change after getting past the Niamey Logan issue was all of my custom classes were gone. While not the end of the world, as I still have tons of attachments and camos to acquire, needing to remember or rethink every single one of the dozen or so classes I’d made is frustrating. Blessedly, none of the Armory progression I’d made was lost, and even the selection of what I was grinding for remained.

This is actually not the first time an error like this has occurred. Both Modern Warfare (2019) and MW2 (2022) had the issue, and it was a bit hairier at the time. MW3’s version is just the latest in a longstanding issue that the Modern Warfare reboot series has been dealing with. Fixing it is simpler than ever, and while it’s never fun to have bugs like this,