This is the error message you may see:
"We are currently unable to retrieve your character. Please try again later. 0-10001-1"
Waiting and attempting to log in again just gives you the same error message. I finally deleted the game from my mobile device, then downloaded it again. Once I logged in with my character login and password, things seemed fine. Hope that works for you.
After the iOS15 update, I got error message 0-10001-1. Here is the fix.
https://solommo.blogspot.com/2021/09/elder-scrolls-blades-error-message-0.html
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