[Sun May 27 20:16:17.824111 2018] [fcgid:warn] [pid 24313] [client xx.143:39124] mod_fcgid: stderr: PHP Warning: preg_replace(): Delimiter must not be alphanumeric or backslash in /home/web/site.ru/public_html/plugins/system/jscssmanipulate/jscssmanipulate.php on line 208, referer: site.ru/
The problem is that part of the code was removed from the Facebook plugin
Because of what your site does not ask for an email address from Facebook
I solved the problem by adding some of the code to \plugins\slogin_auth\facebook\facebook.php
= implode(, );
= . ;
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