### Steps to reproduce

1. Go to [https://qa.openproject-edge.com/projects/copy-of-test-project-cecile/work\_packages?query\_id=3662](https://qa.openproject-edge.com/projects/copy-of-test-project-cecile/work_packages?query_id=3662)

2. Click on the upper right kebab menu

3. Click on Export

4. Select 'Report'

5. Under 'Manage and reorder columns', remove all columns


### What is the buggy behavior?

* Export doesn't take the removal in account and displays all columns that are on screen


### What is the expected behavior?

Begin of the insertion* An errorEnd of the insertion Begin of the deletion ErrorEnd of the deletion message Begin of the insertionstate under the manage columns input field shouldEnd of the insertion Begin of the deletion toEnd of the deletion explain to the users they can't Begin of the insertionexport PDF tables without any columns. The text used could be "It is not possible to export the view without any column. Please, add at least one column and try again."


End of the insertion Begin of the deletion remove all columns

End of the deletion ### Screenshots and other files

<img class="op-uc-image op-uc-image_inline" src="/api/v3/attachments/188301/content">

### Environment information

**OpenProject version**

_dev_

**Browser**

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

**Operating System**

* [x] Windows
* [ ] Mac OS X
* [ ] Mobile iOS
* [ ] Mobile Android
* [ ] Linux (please specify distro)
* [ ] Chrome OS
* [ ] Other (please specify)