Title: Export error
Last modified: March 10, 2022

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# Export error

 *  Resolved [Laurent OneChai](https://wordpress.org/support/users/lolobu/)
 * (@lolobu)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/export-error-38/)
 * Hello,
 * When I try to export my W3TC configuration, I get the following message in my
   browser :
    Internal Server Error The server encountered an internal error or 
   misconfiguration and was unable to complete your request.
 * And in the apache log of the server :
    [http:error] AH02429: Response header 
   name ‘Content-Disposition\xc2\xa0\xc2\xa0’ contains invalid characters, aborting
   request, referer: [https://onechai.fr/wp-admin/admin.php?page=w3tc_general](https://onechai.fr/wp-admin/admin.php?page=w3tc_general)
 * I looked around a bit for what could cause this since it was not happening before,
   and don’t think that it is due to a W3TC update either. I downgraded to a previous
   release of W3TC where I didn’t have this problem and it made not difference.
   
   The only hint that I could find is that my server updated to libpython3.6 around
   that time.
 * Thanks for your help.
    Laurent

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * (@vmarko)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/export-error-38/#post-15449207)
 * Hello [@lolobu](https://wordpress.org/support/users/lolobu/)
 * Thank you for reaching out and I am happy to assist you with this.
    As you mentioned,
   the problem is with the python update and you can get this error if an exception
   is raised in a Python CGI script. That’s UTF-8 encoded text and it should be 
   opened as UTF-8. You should reach out to your hosting provider for assistance.
   The alternative way to backup the configuration is to make a backup of the /wp-
   content/w3tc-config/master.php file which contains the W3TC configuration. I 
   hope this helps! THanks!
 *  Thread Starter [Laurent OneChai](https://wordpress.org/support/users/lolobu/)
 * (@lolobu)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/export-error-38/#post-15449230)
 * Thanks to confirm the reason of this issue 🙂
    I’ll do with a backup of master.
   php, that’s fine for me. Thank you Marko.
 *  Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * (@vmarko)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/export-error-38/#post-15449278)
 * Hello [@lolobu](https://wordpress.org/support/users/lolobu/)
 * You are most welcome!
 * We would really appreciate it if you could take a minute and post a review [here](https://wordpress.org/support/plugin/w3-total-cache/reviews/).
   This will help us to continue offering a top-notch product to users.
    Thanks!

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Export error’ is closed to new replies.

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 * 3 replies
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 * Last reply from: [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * Last activity: [4 years, 1 month ago](https://wordpress.org/support/topic/export-error-38/#post-15449278)
 * Status: resolved