Fetal error in upgrade vb 4.2.2 to vb 5.1.6

[arshadeomran]

Hi there,
I want to upgrade vb 4.2.2 to vb 5.1.6
Upgrade starts and stops at 16% (step 142) by with error:

PHP Code:

1Unexpected Text:
<?xml version="1.0" encoding="UTF-8"?>
<upgrade>
</upgrade>
<fatal_error>
    <description>23 occurred in /home/arshadeomran/public_html/core/vb5/route/channel.php in line 23</description>
</fatal_error>

Also I have recieved another error from Database:

PHP Code:

Database error in vBulletin 4.2.2:

                        Invalid SQL:
INSERT  IGNORE  INTO session (`sessionhash`,`userid`,`host`,`idhash`,`lastactivity`,`location`,`styleid`,`languageid`,`loggedin`,`inforum`,`inthread`,`incalendar`,`badlocation`,`useragent`,`bypass`,`profileupdate`,`apiclientid`,`apiaccesstoken`,`emailstamp`)
                        VALUES('ef8af00a5b6cd22ee6a1a09adce637b7',0,'66.249.79.128','a253d6c8f30bcaa7873680f4041400b2',1429781746,'',1,5,0,0,0,0,0,'DoCoMo/2.0 N905i(c100;TB;W24H16) (compatible; Googlebot-Mobile/2.1; +http://www.google.com/bot.html)',0,0,0,'',0)
/**session**/;

                        MySQL Error   : Unknown column 'emailstamp' in 'field list'
                        Error Number  : 1054
                        Request Date  : Thursday, April 23rd 2015 @ 02:05:46 PM
                        Error Date    : Thursday, April 23rd 2015 @ 02:05:46 PM
                        Script        : http:///showthread.php?t=5&goto=newpost
                        Referrer      :
                        IP Address    : 66.249.79.128
                        Username      : guest
                        Classname     : vB_Database_MySQLi
                        MySQL Version : 

How do I fix this error?
Thanks

[arshadeomran]

Help me, pleasewink

[Lynne]

If you look at your user table, what is the lowest userid for an administrator (typically "1", but not always)? Make sure that userid is entered into the /core/includes/config.php file as a Super Administrator.

[arshadeomran]

Originally Posted by Lynne

If you look at your user table, what is the lowest userid for an administrator (typically "1", but not always)? Make sure that userid is entered into the /core/includes/config.php file as a Super Administrator.

Thank you very much
The problem is solved and I upgraded 4.2.2 to 5.1.6 Successfully!