Forum Problem upgrading from 3.8.4 to 4.0.5.

[محروم.كوم]

Hi,

I am trying to upgrade from 3.6.8 to 3.8.4 to 4.0.5

Upgrading from 3.6.8 to 3.8.4 is ok. However, I've encountered an error when trying to upgrade 3.8.4 to 4.0.5.

Error encountered when trying to run the upgrade.php:

Quote:
vBulletin 4.0 Upgrade System

(Please be patient as some parts may take some time)

Step 2) Misc Table Alterations (2/3) (Step 2 of 13) XML File Versions:

vbulletin-style.xml
vbulletin-settings.xml
vbulletin-language.xml
vbulletin-adminhelp.xml

4.0.5
4.0.5
4.0.5
4.0.5
Step 2) Misc Table Alterations (2/3)

Altering subscribegroup Table (1 of 1)
Altering forum Table (1 of 1)
Altering thread Table (1 of 2)
Altering thread Table (2 of 2)
Altering tachyforumpost Table (1 of 1)
Altering tachythreadpost Table (1 of 1)
Altering style Table (1 of 1)
Altering template Table (1 of 1)
Creating templatemerge table
Altering tag Table (1 of 1)
Creating index canonicaltagid on tag
Updating phrasetype table

Database error in vBulletin 3.8.4:

Invalid SQL:
ALTER TABLE tag ENGINE=InnoDB;

MySQL Error : Lost connection to MySQL server during query
Error Number : 2013
Request Date : Monday, July 19th 2010 @ 0857 AM
Error Date : Monday, July 19th 2010 @ 0857 AM
Script : http://www.example.com/install/upgrade_400a1.php?step=2
Referrer : http://www.example.com/install/upgrade_400a1.php?step=1
IP Address : xxx.xxx.xxx.xxx
Username :
Classname : vB_Database
MySQL Version : 4.1.22-standard


The forum is hosted on a dedicated server.

Any idea how to solve this? __DEFINE_LIKE_SHARE__