Fix Error 0 Call To Undefined Method JAdminCssMenu::Addchild

After updated site form 3.7.5 Joomla to 3.8.0 Joomla and there went something wrong. The crash show Error 0 Call to undefined method JAdminCssMenu::addchild occurred! How can  fix this problem as soon as possbile?!

Fix Error 0 Call To Undefined Method JAdminCssMenu::Addchild

Because: Missing file, wrong file data 

/administrator/modules/mod_sppagebuilder_admin_menu/tmpl/default.php

Method 1: Update Module by download here

Method 2:  Open FTP and chang name "mod_sppagebuilder_admin_menu" to anny and login admin, apfter that, update sppagebuilder right now.