I buy this plugin "user sync" i install in one site no

I buy this plugin "user sync" i install in one site no probleme, but in the subdomain i have this error:

Warning: set_time_limit() has been disabled for security reasons in /home/yykueioy/public_html/hoteles-que-admiten-perros/wp-content/plugins/user-sync/user-sync.php on line 75

Warning: Cannot modify header information - headers already sent by (output started at /home/yykueioy/public_html/hoteles-que-admiten-perros/wp-content/plugins/user-sync/user-sync.php:75) in /home/yykueioy/public_html/hoteles-que-admiten-perros/wp-includes/option.php on line 563

Warning: Cannot modify header information - headers already sent by (output started at /home/yykueioy/public_html/hoteles-que-admiten-perros/wp-content/plugins/user-sync/user-sync.php:75) in /home/yykueioy/public_html/hoteles-que-admiten-perros/wp-includes/option.php on line 564

Mi site is: http://www.sosanimales.com
subdomain: http://hoteles-que-admiten-perros.sosanimales.com/

thank you