Hi all,
I have tried to update a 2.20 site to version 2.50
While I executed the script "upgrade.sql" of file "nopCommerce_2.30_UpgradeScripts.rar" using Web Data Administrator, I got the following error:

"  
ERROR

An unknown error has occured. Please try again.
"

I tried to comment various lines of the script with the intent of identify the origin of the issue and I found that if I execute the first 6 lines of the script it goes ok but if I add the seventh line ("<Language>") it throws the error above.

Thank you in advance for any suggestion.
Regards.
Gianluca