error message: Unable to load user with ID: 42

I have just installed the Financial Business template (- Joomla 2.5 ) and when I click on the Blog menu item it comes up with the following error.
So:
Below is the steps. Please backup your database before making changes. Change "Jos" with your prefix as it might be different.

1. Open your Joomla database using PHPMyadmin tool.
2. Open "jos_users" table,
3. Find record with "Super User" name and click on edit icon,
4. Change Super User id value to 42 and click on "Go" button,
5. Open "jos_user_usergroup_map" table.
6. Find the record with "group_id" value 8, change "user_id" value to 42, then click on "Go" button,
7. Logout and login again.

But now the error is JUser :: _Load: Unable to load user with id: 225

What is the problem?
Error - JUser: :_load: Unable to load user with ID: 42

Hi,

Please send me a PM to provide with your site backend access, database access info then I will check further and fix for you.

Thanks,

Hi,

Please send me a PM to provide with your site backend access, database access info then I will check further and fix for you.

Thanks,

>> HI,
I have informed the requested data. Nothing new?

Make some user and change his id to 255.
This is becouse superadmin was user 255 you write some post , comment using this id. When you change super admin to 42 joomla try find some information about user 255.

It working for me I i'm wrong sorry i'm not developer

>> HI,
I have informed the requested data. Nothing new?

I'm sorry, I have been waiting but not seen any message from you yet. You can try @elfis's solution as well.

Cheers,

This works for me in "Fashion" template! THX too much man!

>> HI,
I have informed the requested data. Nothing new?

I'm sorry, I have been waiting but not seen any message from you yet. You can try @elfis's solution as well.

Cheers,

>>OK. So far everything is working fine.

Hi guys,

Our development team says that they have fixed this problem for the latest versions of our templates.

Cheers,

I am still having this issue. help

There's a simple way to fix this issue is that, just go to edit K2 items to re-assign author.