# Bug OP-14608 - Error 500 on project lists after upgrade to 13.4.0

Project: OpenProject
Status: closed
URL: https://community.openproject.org/work_packages/OP-14608

## Open points

_No work packages_

## Details

| Attribute | Value |
| --- | --- |
| Date |  |
| Priority | High |
| Module |  |
| Target versions | 13.4.1 |
| Observed in versions | 13.3.0 |
| Sprint | 13.4.1 |
| Backlog bucket |  |
| Bug found in version (deprecated) | 13.3.x |
| Found in mobile app version |  |
| Follow-up feedback e-mail |  |
| Requires doc change | No |
| Accessibility | No |
| Pull preview |  |
| List |  |
| Labels |  |

## People

| Attribute | Value |
| --- | --- |
| Assignee |  |
| Accountable |  |
| Product manager |  |
| Developers |  |
| Designer |  |
| Ordered by |  |
| Signed off by |  |
| Interest by |  |

## Planning

| Attribute | Value |
| --- | --- |
| Relevance |  |

## Costs

| Attribute | Value |
| --- | --- |
| Votes |  |
| Work |  |
| Labor costs |  |

## Description

### Steps to reproduce

1.  Have a project custom field
2.  Go to the administration -\> System settings -\> projects
3.  Select the custom field to be column to be displayed in the project lists by default ("SETTINGS FOR PROJECT LISTS")
4.  Delete the project custom field
5.  Go to the project list

Original error report

1.  Upgrade OpenProject to 13.4.0
2.  Login
3.  Go to project lists from top right menu (or from the button at the botton of the project dropdown)
4.  OpenProject display error 500

<img class="op-uc-image op-uc-image_inline" src="/api/v3/attachments/94865/content">

### What is the buggy behavior?

  - The page doesn't display correctly as before

### What is the expected behavior?

*Describe how the application should behave like. Example:*

1.  The list of project displays correctly

### 

### **Logs**

**In the browser console :**

**<img class="op-uc-image op-uc-image_inline" src="/api/v3/attachments/94866/content">**

### Environment information

**OpenProject installation type**

- [ ] Hosted cloud edition
- [x] Packaged installation
    - Ubuntu 22.04.3 LTS
- [ ] Docker All-in-one container
- [ ] Docker-compose installation
- [ ] Other (please specify)

**OpenProject version**

*13.4.0*

**Browser**

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

**Language**

*fr*