Been using Connect for months, great app! I am in Beta program. Last few hours I am unable to access my main instance (lemmy.sdf.org) using my main account with it, I get error

Error An error occurred when retrieving from Lemmy. sdf.org. Details: type 'Null' is not a subtype of type 'bool' in type cast

I am able to access this using desktop browser. I am able to access alt accounts on other instances using Connect.

How to fix this?

Edit

As some commenters here have pointed out this is due to SDF upgrading their server to version 0.19 which isn’t ready and breaks app support- see