Title: rest_invalid_handler
Last modified: February 6, 2018

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# rest_invalid_handler

 *  Resolved [ktwsolo](https://wordpress.org/support/users/ktwsolo/)
 * (@ktwsolo)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/rest_invalid_handler-2/)
 * Hello, I’ve been using Download Monitor, Email Before Download, and Contact Form
   7. Recently filling out the form correctly generates the right download link,
   but clicking on it takes me to this error: {“code”:”rest_invalid_handler”,”message”:”
   The handler for the route is invalid”,”data”:{“status”:500}}
 * Any help where in the communication between these three plugins this is occurring
   and how to remedy? Thanks.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Frest_invalid_handler-2%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Author [mandsconsulting](https://wordpress.org/support/users/mandsconsulting/)
 * (@mandsconsulting)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/rest_invalid_handler-2/#post-9943387)
 * [@ktwsolo](https://wordpress.org/support/users/ktwsolo/),
 * Could you tell me what version of PHP you are using?
 *  Thread Starter [ktwsolo](https://wordpress.org/support/users/ktwsolo/)
 * (@ktwsolo)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/rest_invalid_handler-2/#post-9943412)
 * Hello, it’s 5.3. Thanks.
 *  Plugin Author [mandsconsulting](https://wordpress.org/support/users/mandsconsulting/)
 * (@mandsconsulting)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/rest_invalid_handler-2/#post-9943601)
 * I will look into it, but it may be your PHP version.
 * If you can upgrade, I would highly recommend it. PHP 5.3 is end of life and has
   quite a few security issues.
 *  [lkordas](https://wordpress.org/support/users/lkordas/)
 * (@lkordas)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/rest_invalid_handler-2/#post-9948215)
 * Hello,
 * I am facing the same issue, “rest_invalid_handler” error appears on 5.3 php version.
 * Is there any way we could overcome it, until we upgrade php version?
 * thank you.
 *  Thread Starter [ktwsolo](https://wordpress.org/support/users/ktwsolo/)
 * (@ktwsolo)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/rest_invalid_handler-2/#post-9966273)
 * After 5.6 and then updating all three plugins, the issue resolved. Thank you 
   very much.

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘rest_invalid_handler’ is closed to new replies.

 * ![](https://ps.w.org/email-before-download/assets/icon-256x256.jpg?rev=1813522)
 * [Email Before Download](https://wordpress.org/plugins/email-before-download/)
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 * 5 replies
 * 3 participants
 * Last reply from: [ktwsolo](https://wordpress.org/support/users/ktwsolo/)
 * Last activity: [8 years, 6 months ago](https://wordpress.org/support/topic/rest_invalid_handler-2/#post-9966273)
 * Status: resolved