Can not delete a domain through the user panel

Hi,

I can not delete a domain through the user panel and delete it as a "root", deleting it, but it has the following message at the top of the page:

Warning: file_get_contents(/usr/local/cwpsrv/htdocs/resources/conf/slave_dns/slave_dns_active_conf.json): failed to open stream: No such file or directory in /usr/local/cwpsrv/htdocs/resources/admin/include/functions.php on line 0



BR
Venty