Unknown column 'cd.categories_htc_title_tag' in 'field list'

[KPGroup]

I haven't made any changes to my store in a little while.

 

Went to modify some products in admin. Got a "unknown function tep_hide_session_id()" error. I checked my admin/includes/functions/html_output.php and tep_hide_session_id was not defined. I added it at the bottom of the file.

 

This fixed the missing function error.

 

However...

 

Now, when I go to my store's admin>Catalog>Categories/Product, I get the following error:

 

1054 - Unknown column 'cd.categories_htc_title_tag' in 'field list'
select c.categories_id, cd.categories_name, c.categories_image, c.parent_id, c.sort_order, c.date_added, c.last_modified, cd.categories_htc_title_tag, cd.categories_htc_desc_tag, cd.categories_htc_keywords_tag, cd.categories_htc_description from categories c, categories_description cd where c.parent_id = '0' and c.categories_id = cd.categories_id and cd.language_id = '7' order by c.sort_order, cd.categories_name
[TEP STOP]

 

 

Any ideas? I did a few searches but not sure what this is...

 

Thanks in advance,

 

KPG

[multimixer]

You try to use files that are modified by addons (header tags controller) with a database that is not modified accordingly

[KPGroup]

Thanks for the input multimixer.

 

Very strange, the store was working before and I have not installed an addon in over a year...

I will have to look into this.

[multimixer]

Well, the error is very clear: The file is looking for field cd.categories_htc_title_tag in the database and that field don't exist

 

So, 2 possible things, since you say it was working before:

 

1)The database changed

2) The file changed