WordPress 2.7 and WP E-commerce plugin “Error 500 – Internal server error” SOLUTION!

WordPress 2.7 + WP E-commerce plugin + 1and 1 hosting causes an “Error 500 – Internal server error” when trying to activate the WP E-commerce plugin.

Solution from the WordPress Support Forums – from member “arapacana” (post #13, from the top):

If Brian’s solution doesn’t work, you can edit or create an .htaccess file to make your php files run with php5, since Apache by default may be running an earlier version of php.

Just put the following in the file on its own line:
AddType x-mapp-php5 .php

The .htaccess file can be in the root directory of your blog or website, and is just a text file.

Hope this helps – it worked for me and others for this problem.

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  1. […] Solution for 1and1.com hosting […]

  2. Erich on April 7, 2009 at 4:09 pm

    Thanks, it worked!

  3. Josh on May 23, 2009 at 12:18 pm

    works! great! good post for me, lowering frustration levels. 🙂

  4. Bill Simon on June 15, 2009 at 7:57 pm

    It worked exactly as explained (Through a 1and1 hosting acct I have). I did mistakenly install the .htaccess file only in the the shopping cart plug-in folder and kept getting the error 500 message. When I put it into the http://www.mydomain.com folder, it then worked instantly.

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  6. Brian Morgan on July 13, 2009 at 5:45 am

    I am hosting with 1and1. I have added a .htaccess.txt file to my main folder.

    However I am still getting the error.

    Does the .htaccess.txt file just have that 1 line of code in it. Do I need to add something else?

    Do I have to make it executable?

    Any tips would be much appreciated.


  7. Brian Morgan on July 13, 2009 at 5:49 am


    Sorry about the last post. I had a .htaccess.txt file not just an .htaccess file. It now works.

    I guess if anyone is having the problem just take of the .txt.


  8. koleksikeren on August 29, 2009 at 10:37 am

    Thank you thank you thank you thank you thank you

  9. Drew on March 2, 2010 at 1:53 pm


  10. jacob on September 13, 2010 at 7:08 pm

    Thanks a lot. The only way I could get rid of the Error was by deactivating the Google analyticator plug in…each and every time I wanted to edit a post OR add a widget (the widget sidebars kept disappearing too…which was another problem the fix helped with). Your tip fixed the issues just like that.

    • admin on September 13, 2010 at 7:22 pm

      So glad this helped your WordPress site, Jacob. This one little edit to the .htaccess file has saved me many, many times.

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