### Steps to reproduce

1. Go To Workpackage
2. Insert Comment

### What is the buggy behavior?

* Error occures and comment is not saved: y.data is undefined Read more: [https://ckeditor.com/docs/ckeditor5/latest/support/error-codes.html#terror-y.data](https://ckeditor.com/docs/ckeditor5/latest/support/error-codes.html#terror-y.data) is undefined

### Begin of the insertion<img class="op-uc-image op-uc-image_inline" style="width:786px;" src="/api/v3/attachments/78999/content">

###End of the insertion What is the expected behavior?

1. Comment is saved

### Screenshots and other files Begin of the insertion



End of the insertion Begin of the deletion

&lt;img class=&quot;op-uc-image op-uc-image_inline&quot; style=&quot;width:1189px;&quot; src=&quot;/attachments/78942/Screenshot_2023-11-07_at_14-54-13_Task_Content_Produkt_mit_Warenkorb_TrustedShops_Bewertungen_integrieren___11867__Trauner_Verlag_-_Various_Interactive_Projects.png&quot;&gt;

End of the deletion ### Environment information

**OpenProject installation type**

* [x] Packaged installation
* Ubuntu

**OpenProject version**
OpenProject 13.0.7

**Browser**

* [ ] Chrome
* [x] Firefox
* [ ] Safari
* [ ] Mobile Safari
* [ ] Other (please specify)

**Language**

_German_