Problem with setting up a vote in an elections component

[paarals]

Describe the bug

In a participatory process, I have set up an elections component to conduct a vote. Once I have completed all the steps of the vote and click on "setup elections," I encounter the following error:

To Reproduce

The problem is here: https://decidim-elections.dev.pokecode.net/admin/participatory_processes/component-elections1/components/1/manage/elections/1/steps/create_election

Expected behavior

Initiate the vote and be able to proceed with the following steps.

Screenshots

No response

Stacktrace

No response

Extra data

• Device: Desktop
• Device OS: Ubuntu 20.4
• Browser: Mozilla
• Decidim Version: 0.28-dev
• Decidim installation: https://decidim-elections.dev.pokecode.net

Additional context

No response