I don't know if i have the correct configuration

Hi, i set one mapped-domain for one site, but when i created another subdomain site, i have this output error in front end (still haven't any mapped domain set this subdomain):

Fatal error: Uncaught Error: Call to a member function get() on boolean in /home/user/public_html/wp-content/plugins/domain-mapping/classes/Domainmap/Module/Mapping.php:1133 Stack trace: #0 /home/user/public_html/wp-content/plugins/domain-mapping/classes/Domainmap/Module/Mapping.php(295): Domainmap_Module_Mapping->redirect_upfront_to_mapped_domain() #1 /home/user/public_html/wp-includes/plugin.php(525): Domainmap_Module_Mapping->redirect_front_area('') #2 /home/user/public_html/wp-includes/template-loader.php(12): do_action('template_redire...') #3 /home/user/public_html/wp-blog-header.php(16): require_once('/home/user/...') #4 /home/user/public_html/index.php(17): require('/home/user/...') #5 {main} thrown in /home/user/public_html/wp-content/plugins/domain-mapping/classes/Domainmap/Module/Mapping.php on line 1133

Is it a malconfiguration that had I set?