when i put the mail and the username and press send i doesnt get a message for the mail
this is the site: http://secretjob.online/index.php/community/?wpforo=signup
The new user registration email doesn't have any relation to wpForo. The New User Registration email is performed by WordPress Core. You should make sure your WordPress and the hosting server are able to send emails. Please follow to these instructions, it may help you:
Did you check your spam folder?
You use other registration solution. here is your registration page please try to register: http://secretjob.online/wp-login.php
It seems you use wordpress.com jetpack. So please disable wpForo registration form or disable wordpress.com / Jetpack registration. You should use one f them.