My question is about a theme named quality control which was available at wordpress repository. The plugin developer is not available at this moment and I hope I get resolution for my problem here

These are the errors and many others are reporting the same error on the theme's official site

Catchable fatal error: Object of class WP_Error could not be converted to string in /public_html/wp-content/themes/quality-control/single.php on line 55

and some times...

Catchable fatal error: Object of class WP_Error could not be converted to string in \wp-content\themes\quality-control\inc\templates\loop.php on line 37

Could anybody help me with this? I am ready to give admin access to my site to replicate the error

Update :

The WordPress version I am using is 3.1 and I have tried both the 'Quality control' theme versions 1.5 and 2.0 versions .

http://ffav.in is the address of web-site and these are the URLs for some example posts with errors :

1) http:// ffav.in/ticket/test/

2) http:// ffav.in/category/uncategorized/


  • What's on line 55 of single.php and line 37 of loop.php? (save me/anyone having to download it just to check two lines of code).
    – t31os
    Commented Feb 24, 2011 at 16:41
  • t31os, I have mentioned the links and exact errors in the question. I have double checked. I could not solve it
    – user3477
    Commented Mar 11, 2011 at 12:14
  • I can give you the admin login details. But I am not certain if I can enter those details here.Please advice
    – user3477
    Commented Mar 11, 2011 at 12:16
  • Following this blog, i'd personally choose another theme.
    – t31os
    Commented Mar 11, 2011 at 12:28

2 Answers 2


First thing i ran across was this conversation about the same issue. I couldn't find it in the theme repo, but found it accessible via svn @repo.

Now please answer some basic questions: Which version (wp & quality control) are you running? Could you share a link to your install? Which modifications have you made? Have you deactivated all plugins and tried to reproduce the error?

I took a look at the repository (latest is version 1.2 - please take a look at the link from @Rarst to verify that this is the version you're using) and found the following theme functions called before your error messages:

  • loop.php: echo quality_ticket_status( $post->ID, 'slug' ); (2 times, line 29 & 35)
  • singled.php: ... nothing

I'd suggest you tell us exactly (in your best english) every detail about the request that produces the error: which page you're on http://example.com/whatever-comes-here, what modifications you did, etc. Currently it's fishing in the dark.

  • Trac browser is little more friendly on the eyes than raw SVN version themes.trac.wordpress.org/browser/quality-control#0.2
    – Rarst
    Commented Feb 24, 2011 at 20:23
  • I can give access to my wordPress powered site. Please let me know If Can send the login details to your mail or am I need enter it hear Thanks!
    – user3477
    Commented Mar 11, 2011 at 6:32
  • See update of A. (Voting always appreciated)
    – kaiser
    Commented Mar 11, 2011 at 6:50
  • I will update my question with detailed information.By the way the latest version is 2.0. Thanks!
    – user3477
    Commented Mar 11, 2011 at 8:15
  • Kaiser,Thanks for your help.I have updated the question with links to the pages which show error messages. Can you please login and check it by yourself if I give you the admin access to website?
    – user3477
    Commented Mar 11, 2011 at 12:17

Actually there is nothing problem with the theme. I had to create at-least one 'status' before posting a ticket/post and change the Permalink settings.

Most of the bugs reported by other users about this theme might have occurred with modified Permalink settings.

Thanks !

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