Looks like something is wrong with fortmatic!
I got the same problem while trying to connect my wallet to uniswap. Currently I'm able to log in to Morpher but unable to connect my wallet to Uniswap.
Something fishy is going on, it says "code sent to phone", although I registered with email, I do get a code by mail but I get "User failed to authenticate". Tried for two hours without success.
Anybody else having problems?
Btw when logging in to Morpher using fortmatic it actually says "code sent by email" and I'm able to log in with that code. Weird. Never had to enter a code before when logging in.