I would like to disable my forms as soon as the sum of a certain field

I would like to disable my forms as soon as the sum of a certain field in all submissions reaches a predefined value. Is that possible?

Example: The form contains a field "Number of persons from my family that will attend"

Disable the field as soon as 50 attendees are reached.

Unfortunately, it is not possible to sum up values based on previous submissions. It is also not possible to disable the form based on a certain value within your form.