Hi,
I am using Joomla 3.3.6 and K2 v2.6.8.
I recently migrated my K2 database to a new Joomla installation using PHPMyAdmin.
Now, when I do a tag or category search, I get this error message:

Warning
JUser: :_load: Unable to load user with ID: 575

I changed the ID of the current Joomla Super User and K2 User to 575 in PHPMyAdmin.
The error message stopped but then I could no longer Login to the Admin using the current Super User.
How can I fix this so the current Joomla Super User can have the ID the old K2 items and login to the Admin?
Thanks!

You accidentally removed a user from your DB.
That user has items assigned to him. You need to assign these items to a user that exists in your current site.

Hi Krikor,
I have over 1,000 items.
How do I assign these items to the current Super User that exists in your current site without having to go through each item one at a time?
Thanks

If you are using phpmyadmin, try using the update command. Use the WHERE clause to specify the old user id and change only those records