# Application Error: Client side exception has occured

**URL:** <https://forum.builder.io/t/application-error-client-side-exception-has-occured/6667>\
**Category:** Visual Editor Help\
**Created:** [October 30, 2024, 5:55am UTC](https://forum.builder.io/t/application-error-client-side-exception-has-occured/6667 "2024-10-30T05:55:12Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![ryanpuriran](https://avatars.discourse-cdn.com/v4/letter/r/3d9bf3/32.png) [@ryanpuriran](https://forum.builder.io/u/ryanpuriran)\
**Post date:** [October 30, 2024, 5:55am UTC](https://forum.builder.io/t/application-error-client-side-exception-has-occured/6667/1 "2024-10-30T05:55:12Z")

</div>

I am new with [builder.io](http://builder.io) and would like to ask how can I get the wysiwyg page loading again. I am getting an error saying

TypeError: can’t access property “data”, el’case-study’].value is undefined

but does not know where I can update the JS. Can anyone point me on the right direction so I can study it and fix my issue.

Thanks!

Builder content link

> **[Builder.io: Visual Development Platform](https://builder.io/content/cf16b1b047444c1fb8881f2b77328612)**
>
> Drag and drop with your components, right within your existing site or app. Build and optimize digital experiences for any tech stack, visually..

Builder public api key  
c9f73fd11785496381627394f85aa6aa

What are you trying to accomplish  
Make the wysiwyg loading properly again

Screenshots or video link  
https://www.loom.com/embed/5a2657b602704db0afb8470a24c148af?sid=8110a752-d3be-4e48-8790-0379bcf6099e

Code stack you are integrating Builder with  
NextJS