First of all this is an international forum so you must speak English here or at least try to.
You may refer to this Knowledge Base article about why when you update your plugin it results in an error:
User 24114216_1 already has more than ‘max_user_connections’ active connections at /home/vol9_4/epizy.com/epiz_24114216/htdocs/wp-includes/wp-db.php on line 1626
It seems like that’s because of the current FTP issue, FTP is currently not stable right now.
You may refer to this announcement: