SeafilePro - no available certificates on login

[dan1229]

Recently got logged out of seafile on my iOS device - when trying to log back in I receive the error “No Certificates Available”

My HTTPS/SSL seems to look good, valid cert and all that and it works fine from the web client. I tried disabling SSL but still no connection. Not really sure what changed or what’s going wrong here.

I use Cloudflare for my DNS however the problem doesn’t seem to lie here either as far as I can tell.

Funny enough now too when I try to use the app on my mac it also doesn’t work anymore. Really unsure what to make of this.

I’ve tried a bunch of stuff:
downgrading seafile docker image
installing seafile pro (only one user so it’s free)
disabling https verification
all sorts of playing with https/ssl settings in cloudflare
much more more nonsense

I've narrowed it down a lot and after peaking through the code a bit and similar errors I think this is an error on the client side although I'm not sure what since it's showing up on all my clients now thus clearly caused by my server.

Either way would love guidance whether my issue or this app's.

Thanks in advance!