Does not work scrolling site in Google Chrome

This may be a plugin or theme issue. Please try to disable all plugins, and use one of the default (Twenty) theme. If the problem goes away, enable them one by one to identify the source of your issue.

See https://www.wpbeginner.com/plugins/how-to-deactivate-all-plugins-when-not-able-to-access-wp-admin/

Also, You need to update the plugins to their latest versions.
Old version of plugin might cause an issue.

Many thanks! Found! Blame the plugin js_composer. It is updated. But scrolling still does not work.