Webhook test trigger error 500

So i want to use webhook for my app fetching data revalidation. When I click on Trigger button on strapi it shows 500 error. Did anyone ever encounter this?
note: my localhost:3000 project is up and running, i’m confused why did it got 500…

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Did you manage to solve the problem?

Someone on another thread changed localhost to 127.0.0.1:3000 did you test that?