Title: error 500 when installing
Last modified: June 9, 2025

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# error 500 when installing

 *  Resolved [lanthalas](https://wordpress.org/support/users/lanthalas/)
 * (@lanthalas)
 * [11 months, 3 weeks ago](https://wordpress.org/support/topic/error-500-when-installing/)
 * Hi,
 * I want to duplicate my WP site on my nas.
 * For that i’m using duplicator. As my site is quite big, I first download all 
   the www directory, and than create the duplicator archive only for database. 
   Than I download duplicator files to my NAS where the www files have been downloaded.
 * Than I enter the [https://my_nas_path/installer.php](https://my_nas_path/installer.php)
 * And it doesn’t work. I have an http error 500 saying the page is not available
   at this time.
 * When I create a simple php file and do the same it works. I checked the file 
   auhorisation and every thing is OK. I don’t understand why I have this error 
   and can fix it.
 * using php -l installer.php i have a parser errors return.
 * My PHP version is the same on both sites.
 * Can someone help me please?
 * Many thanks.
 * Best regards

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Support [mohammedeisa](https://wordpress.org/support/users/mohammedeisa/)
 * (@mohammedeisa)
 * [11 months, 3 weeks ago](https://wordpress.org/support/topic/error-500-when-installing/#post-18505799)
 * Hello [@lanthalas](https://wordpress.org/support/users/lanthalas/) ,
 * Thanks for reaching out to us.
 * It looks like the installer.php file is corrupted. To get the original installer.
   php file that comes with the backup, please follow the instructions in this page:
   
   [https://duplicator.com/knowledge-base/how-to-get-the-original-installer-that-came-with-the-archive/](https://duplicator.com/knowledge-base/how-to-get-the-original-installer-that-came-with-the-archive/)
 * After producing the original installer, please retry the backup installation 
   and let me know if a problem happened.
 * I’m looking forward to hearing back from you.
 * Thanks!
 *  Thread Starter [lanthalas](https://wordpress.org/support/users/lanthalas/)
 * (@lanthalas)
 * [11 months, 3 weeks ago](https://wordpress.org/support/topic/error-500-when-installing/#post-18506358)
 * hi, thanks for your answer.
 * I get the installer.php from the zip file generated, and IT WORKS !
 * Many thanks.
 * However, that means the installer.php file that documentor propose to download
   is not ok. What’s strange, I tried several versions and it was always the same
   probleme. Is the installer.php located on the serveur once?
 * Best regards
 * Philippe
 *  Plugin Support [mohammedeisa](https://wordpress.org/support/users/mohammedeisa/)
 * (@mohammedeisa)
 * [11 months, 3 weeks ago](https://wordpress.org/support/topic/error-500-when-installing/#post-18508121)
 * Hi [@lanthalas](https://wordpress.org/support/users/lanthalas/) ,
 * I’m happy that you succeeded to generate the installer.php and made it work!
 * The corruption in the installer.php files might happen while downloading the 
   file, or while generating it.
 * Please try another web browser to download the installer.php, and check it.
 * If this doesn’t help, this may be a problem or a limitation from the server.
 * I hope this helps.
 * Thanks
   !
 *  Plugin Support [mohammedeisa](https://wordpress.org/support/users/mohammedeisa/)
 * (@mohammedeisa)
 * [11 months, 2 weeks ago](https://wordpress.org/support/topic/error-500-when-installing/#post-18514944)
 * Hi [@lanthalas](https://wordpress.org/support/users/lanthalas/) ,
 * We haven’t heard back from you in a few days, so I’m going to go ahead and close
   this thread for now. But if you’d like us to assist further, please feel welcome
   to continue the conversation.
 * Thanks! 

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘error 500 when installing’ is closed to new replies.

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 * 4 replies
 * 2 participants
 * Last reply from: [mohammedeisa](https://wordpress.org/support/users/mohammedeisa/)
 * Last activity: [11 months, 2 weeks ago](https://wordpress.org/support/topic/error-500-when-installing/#post-18514944)
 * Status: resolved