If you are also bothered by this issue, heres shortlist of possible workarounds for you onMiniTool Website.
The fact that it still appears may annoy most game players like you.
The good news is that we have found some easy and effective workarounds for you.

Check them out below!
Create a new account with another email address.
Load up to Call of Duty Warfare/Warzone when logging into this account.
![]()
Proceed to the multiplayer menu and then switch your previous account.
Leave the regiment that you belong to or enable theblock regiment invitesoption.
Step 1. launch the game and go to the startup screen.
InBarracks, scroll down to chooseIdentify.
Go toCustom Clan Tagand see to it yours is empty.
Save the changes and relaunch the game to see if the memory error 13-71 is gone.
For Xbox One or Xbox Series
Step 1.
Press theXboxbutton to openGuideand then go toSettings>Systems>options>internet.
Click onNetwork Settingsand chooseGo Offline.
Step 4. kill the two options:CrossplayandCrossplay Communication.
In this case, it is a good option to delete it.
For Xbox One/Xbox Series X
Step 1.
Go toGuide>Games & Apps, scroll down to find Call of Duty Warfare/Warzone and hit it.
PressStart>Manage game>Saved data>Delete all.
This method is harmless because it only deletes temporary associated with the local game installation.
This method might be a little time-consuming because the installation file is huge, kindly wait patiently.
Do you play Call of Duty Warzone with your friends?
You must encounter some tricky issues like Warzone high CPU usage when gaming.
Find fixes in the post now!