This SQL request call all time and overload my server : SELECT meta_value FROM wp_sitemeta WHERE meta_key = ‘wp_installer_network’ AND site_id = 1

What is it It’s most likely a part of the WPML. This is based on a quick copy paste of wp_installer_network into the github search box. There’s also a small chance this is the Types plugin, but you mentioned you had a multilingual plugin installed. No references to wp_installer_network are found in WordPress itself. and … Read more