Title: Error on multiple use
Last modified: January 22, 2020

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# Error on multiple use

 *  [Keramot UL Islam](https://wordpress.org/support/users/sourav926/)
 * (@sourav926)
 * [6 years, 2 months ago](https://wordpress.org/support/topic/error-on-multiple-use/)
 * If I use CodeMirror multiple times on a post then it gives an error.
 * Error: `Updating failed. Error message: The response is not a valid JSON response.`
 * and also a `403` on the console.

Viewing 1 replies (of 1 total)

 *  Plugin Author [Vicky Agravat](https://wordpress.org/support/users/vickyagravat/)
 * (@vickyagravat)
 * [6 years, 2 months ago](https://wordpress.org/support/topic/error-on-multiple-use/#post-12355772)
 * Hello [@sourav926](https://wordpress.org/support/users/sourav926/)
 * I think you are talking about (block editor) in admin side.
    When you click Save/
   Publish button you got 403 error.
 * The reason of 403 may be Mod security is enabled, on your server.
 * = How to solve?
 * 1. Please try to save a post without any code block?
    Still get 403, it is on
   CodeMirror Blocks problem.
 * 2. If you get 403, please disable Mod security temporarily, and try to save post.
 * 3. If it Saved successfully, than add a single Code Block, and Save post.
    repeat
   this step until you get 403.
 * 4. If possible please Tell me maximum how many Code Blocks are successfully saved!

Viewing 1 replies (of 1 total)

The topic ‘Error on multiple use’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [Vicky Agravat](https://wordpress.org/support/users/vickyagravat/)
 * Last activity: [6 years, 2 months ago](https://wordpress.org/support/topic/error-on-multiple-use/#post-12355772)
 * Status: not resolved