Xbox Series X Error "FTCL 5001"

HI @xKilLo10X When you have a moment can we try the following?

• Quit the game and other running apps from Quick Resume (For Series X|S consoles)
• Remove any connected device, or additional USB's from the console then restart the Xbox and check
• Check for updates 
• Try the steps in our Connection and Advance Connection Guides 
• Open you're Xbox NAT Type
• Change DNS settings (You can use the public google DNS primary: 8.8.8.8, secondary: 8.8.4.4, unless there is a different DNS you would rather use)  
• Persistent Storage 
• Go to settings > Select Device & Connections > Then Blue-Ray 
• Select Persistent Storage > Clear Persistent Storage 
• Alternate Mac: 
• Go to settings > Select General  > Then Network settings 
• Go to advanced settings > Alternate Mac address > Select clear 
• Select restart