Description

When a simulation is running, when I try to add an email I get en error message

Reproducible Steps

Go to https://prerelease.obas.staging.filigran.io/admin/simulations/032c56d8-a681-46e4-9c6e-d8a05dd8ba43/animation/mails

Launch the simulation

Click on the button + in bottom right corner

Expected Output

It is supposed to let you create an new email to send during the simulation

Actual Output

error message