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I cannot access your site. please make sure you put correct email settings at joomla backend > system > global configuration > server
if no problem at that email settings, please provide me credentials information of your site by editing your first post at this topic. and put it at site info form (private). I need it for debugging your site.
I confirmed, its a bug related with joomla newest version.
here the temporary fix, edit:
/components/com_community/models/register.php at line 123 and 176
I neer your FTP access detail. please edit your first post at this topic, and put it at site indo form.
i'm sure invalid address issue has been fixed.
and about invalid token, you need to clear your browser cookies.
Invalid token at that link mean, the token that stored at users database not valid.
I need to have a look at your database. please provide me hosting cpanel access detail.