Failed to load plugin

hi, for some days I have this error: “Failed to load plugin: wordpress from url http://www.mydomain.it/wp-includes/js/tinymce/plugins/wordpress/plugin.min.js”. removed and reinstalled the plugin TinyMce 4.8.0 but the problem remains, I reinstalled WordPress 5.0 several times (on linux server) but the problem continues, I have also disabled the plugin and the problem is still present. How can I solve? Thank you