BUG: Adding a response to a multiple choice gives Status 500: Internal server error

[Meefish]

For reproduction purposes

Given Input:
{ "answerID": "7f0df62d-31c3-4845-a604-dda971bfb412",
"interactionID": "6bbd248b-c75e-4ca6-8621-69c6a5e569f2",
"questionID": "35bccf73-e1c9-4da7-9018-1a0327708cd9"
}

Response:
{ "$schema": "https://wildlifenl-uu-michi011.apps.cl01.cp.its.uu.nl/schemas/ErrorModel.json", "title": "Internal Server Error", "status": 500}

ID's From:

{
"$schema": "https://wildlifenl-uu-michi011.apps.cl01.cp.its.uu.nl/schemas/Interaction.json",
"ID": "6bbd248b-c75e-4ca6-8621-69c6a5e569f2",
"timestamp": "2024-12-24T14:15:22Z",
"description": "Wow",
"location": {
"latitude": -90,
"longitude": -180
},

"ID": "35bccf73-e1c9-4da7-9018-1a0327708cd9",
"text": "Op welk tijdstip kwam u het wilde dier tegen?",
"description": "Deel alstublieft hieronder wat uw eerste reactie was toen u het dier zag.",
"index": 4,
"allowMultipleResponse": true,
"allowOpenResponse": false,
"openResponseFormat": "string",
"answers": [
{
"ID": "7f0df62d-31c3-4845-a604-dda971bfb412",
"text": "'s Avonds",
"index": 3
},
{
"ID": "a065dab7-b719-4a38-b496-c3029ccc6515",
"text": "'s Nachts",
"index": 4
},