Solution to error code (0x80a4001a) on Xbox - YouTube
Error code 0x80a4001a - Microsoft Community
XBOX-Fehler 0x80a4001a: So beheben Sie das Problem - CHIP
Sorry, there's a problem with the credentials that you're using to sign in
Dan Dickinson (@DanDickinson26) / Twitter
0x80a4001a Xbox error message and how to fix - YouTube
I purchased this mash up pack on the Xbox store and it won't show up in game. Viewing the reviews a lot of people have had this issue. Anyone have a fix