[Resolvido] Fatal Error in WML Multilingual CMS

Error Description: A fatal error of type E_ERROR occurred in line 39 of the file /home/u616141987/domains/primeld.com.sa/public_html/wp-content/plugins/sitepress-multilingual-cms/vendor/otgs/installer/includes/admin-notices/notices/Account.php. The error message indicates that the class "OTGSInstallerCollection" is not found.