ask for activate key

Great work,thanks.

It sent email with activation link, after click the link, it SOMETIMES ask for activation keys at the first step, so I can not activate the account, how to resolve it?

and sometimes it can do for next step, but when I upload avatar image, it show some error, please check:https://prntscr.com/dx3cbk

Also, if there is already an email account, it will sent account activation email too, and no any indicate information to show like :this email account has already exist.

Also it would be great if there is a BACK button during register process.

Anyway to translate into other language?

Have a nice day.

Alex