Fillip H. in minutes I will send you all the details.
On Sigaretta Elettronica Forum the problem is still there and are arriving to me many errors by email, see here:
Database error in vBulletin 4.2.3:
Invalid SQL:
                                        SELECT
                                                entry.*,
                                                user.username,
                                                user.usergroupid,
                                                user.membergroupids,
                                                user.infractiongroupid,
                                                user.displaygroupid,
                                                receiveduser.username AS receivedusername,
                                                receiveduser.usergroupid AS receivedusergroupid,
                                                receiveduser.membergroupids AS receivedmembergroupids,
                                                receiveduser.infractiongroupid AS receivedinfractiongroupid,
                                                receiveduser.displaygroupid AS receiveddisplaygroupid
                                        FROM (
                                                (
                SELECT
                        post.postid,
                        post.title AS posttitle,
                        post.pagetext AS pagetext,
                        thread.title AS threadtitle,
                        thread.title AS title,
                        thread.threadid,
                        thread.forumid,
                        entry_post.*
                FROM vb4_dbtech_thanks_entry AS entry_post
                LEFT JOIN vb4_post AS post ON (post.postid = entry_post.contentid)
                LEFT JOIN vb4_thread AS thread ON (thread.threadid = post.threadid)
                WHERE entry_post.entryid IN(3485, 3482, 3455, 3453, 3451, 3450, 3449, 3448, 3447, 3446, 3445, 3443, 3440, 3439, 3433, 3432, 3431, 3430)
                        AND post.visible = 1
        ) UNION ALL (
                SELECT
                        review.reviewid AS postid,
                        review.title_clean AS posttitle,
                        review.short_text AS pagetext,
                        review.title_clean AS threadtitle,
                        review.title_clean AS title,
                        review_instance.shortname AS threadid,
                        0 AS forumid,
                        entry_dbreview_review.*
                FROM vb4_dbtech_thanks_entry AS entry_dbreview_review
                LEFT JOIN vb4_dbtech_review_reviews AS review ON (review.reviewid = entry_dbreview_review.contentid)
                LEFT JOIN vb4_dbtech_review_instances AS review_instance ON (review_instance.instanceid = review.instanceid)
                WHERE entry_dbreview_review.entryid IN(3427, 3426)
        )
                                        ) AS entry
                                        LEFT JOIN vb4_user AS user ON(user.userid = entry.userid)
                                        LEFT JOIN vb4_user AS receiveduser ON(receiveduser.userid = entry.receiveduserid)
                                        ORDER BY entryid DESC
                                        LIMIT 20;
MySQL Error   : Unknown column 'review.short_text' in 'field list'
Error Number  : 1054
Request Date  : Monday, July 13th 2015 @ 04:36:09 PM
Error Date    : Monday, July 13th 2015 @ 04:36:09 PM
Script        : 
Sigaretta Elettronica Forum Database Error
Referrer      : 
Sigaretta Elettronica Forum
IP Address    : 93.58.31.180
Username      : Marko
Classname     : vB_Database_MySQLi
MySQL Version : 5.5.42-cll-lve
Database error in vBulletin 4.2.3:
Invalid SQL:
                                        SELECT
                                                entry.*,
                                                user.username,
                                                user.usergroupid,
                                                user.membergroupids,
                                                user.infractiongroupid,
                                                user.displaygroupid,
                                                receiveduser.username AS receivedusername,
                                                receiveduser.usergroupid AS receivedusergroupid,
                                                receiveduser.membergroupids AS receivedmembergroupids,
                                                receiveduser.infractiongroupid AS receivedinfractiongroupid,
                                                receiveduser.displaygroupid AS receiveddisplaygroupid
                                        FROM (
                                                (
                SELECT
                        post.postid,
                        post.title AS posttitle,
                        post.pagetext AS pagetext,
                        thread.title AS threadtitle,
                        thread.title AS title,
                        thread.threadid,
                        thread.forumid,
                        entry_post.*
                FROM vb4_dbtech_thanks_entry AS entry_post
                LEFT JOIN vb4_post AS post ON (post.postid = entry_post.contentid)
                LEFT JOIN vb4_thread AS thread ON (thread.threadid = post.threadid)
                WHERE entry_post.entryid IN(3485, 3482, 3455, 3453, 3451, 3450, 3449, 3448, 3447, 3446, 3445, 3443, 3440, 3439, 3433, 3432, 3431, 3430)
                        AND post.visible = 1
        ) UNION ALL (
                SELECT
                        review.reviewid AS postid,
                        review.title_clean AS posttitle,
                        review.short_text AS pagetext,
                        review.title_clean AS threadtitle,
                        review.title_clean AS title,
                        review_instance.shortname AS threadid,
                        0 AS forumid,
                        entry_dbreview_review.*
                FROM vb4_dbtech_thanks_entry AS entry_dbreview_review
                LEFT JOIN vb4_dbtech_review_reviews AS review ON (review.reviewid = entry_dbreview_review.contentid)
                LEFT JOIN vb4_dbtech_review_instances AS review_instance ON (review_instance.instanceid = review.instanceid)
                WHERE entry_dbreview_review.entryid IN(3427, 3426)
        )
                                        ) AS entry
                                        LEFT JOIN vb4_user AS user ON(user.userid = entry.userid)
                                        LEFT JOIN vb4_user AS receiveduser ON(receiveduser.userid = entry.receiveduserid)
                                        ORDER BY entryid DESC
                                        LIMIT 20;
MySQL Error   : Unknown column 'review.short_text' in 'field list'
Error Number  : 1054
Request Date  : Sunday, July 12th 2015 @ 04:04:10 PM
Error Date    : Sunday, July 12th 2015 @ 04:04:11 PM
Script        : 
Sigaretta Elettronica Forum Database Error
Referrer      :
IP Address    : 157.55.39.166
Username      : Non Registrato
Classname     : vB_Database_MySQLi
MySQL Version :