Hey

I've got an issue with registration (see screenshot). How can I fix it?

 

 

Googling the message you are getting there, this appears to be an issue with your browser. Please check your browser is up to date in the first instance and let us know if this resolves your issue

I tried different browsers. Didn't help. Turned CloudFlare to Development Mode. Didn't help either.

Previously, I didn't have any issues with Cloudflare. Some users managed to register, and some complained. I can't do it on my side. 

Do you have any ideas?

And the same with login

Fixed. The cause was Guest View Limits plugin, which I forget to update

Glad to hear you found the issue!