Title: Cognito Forms BLOCK generates errors
Last modified: April 2, 2023

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# Cognito Forms BLOCK generates errors

 *  [Gabor Lippert](https://wordpress.org/support/users/lunule/)
 * (@lunule)
 * [3 years, 1 month ago](https://wordpress.org/support/topic/cognito-forms-block-generates-errors/)
 * Hi,
   The plugin is basically nice, and it’s great that seemlessly integrated forms
   can be styled with custom CSS – but it also seems to be buggy, the block is generating
   errors:
 *     ```wp-block-code
       Uncaught TypeError: Cannot read properties of null (reading 'classList') at seamless.js:1:17796
       ```
   
 *     ```wp-block-code
       Uncaught TypeError: Cannot read properties of null (reading 'insertBefore') at seamless.js:1:15341
       ```
   
 *     ```wp-block-code
       FormBase.ts:634 Uncaught TypeError: Cannot read properties of undefined (reading 'toLowerCase')
       at a.value (FormBase.ts:634:13)at HTMLDocument._keydownListener (FormBase.ts:607:59)
       ```
   
 * Thanks for investigating these further…
    -  This topic was modified 3 years, 1 month ago by [Gabor Lippert](https://wordpress.org/support/users/lunule/).
      Reason: Another error reported by console

The topic ‘Cognito Forms BLOCK generates errors’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [Gabor Lippert](https://wordpress.org/support/users/lunule/)
 * Last activity: [3 years, 1 month ago](https://wordpress.org/support/topic/cognito-forms-block-generates-errors/)
 * Status: not resolved