Cant make webhook to zapier work

I had an event subscription webhook done with JWT that suddenly stopped working, I just used the webhook URL provided by zapier that would look something like:

Now the zap is not working and when I try to reproduce the same thing I keep getting a " can’t verify URL " sort of error.

I used the webhook to send information about who actually attended the webinar, how do I achieve this now? I need the event to be sent to zapier whenever someone attends the webinar.

Hi @gussilv
Thanks for reaching out to us!
I am happy to help here!
Have you tried to reach out to Zapier Dev Support?
As Zapier built their own workflow, I do not know how to troubleshoot their app.