Visual Studio Team Services Deployments error

I created 4 tenants within the last week and configured the Visual Studio Team Services Deployments extension on each.
On 2 of them everything works fine, but on the other 2 I get this error every time I try to deploy even though everything appears to be configured correctly in the extension settings and in the Azure Devops webhook.

Schema validation failed loading [
{
“keyword”: “required”,
“dataPath”: “.hooks[0]”,
“schemaPath”: “#/properties/hooks/items/required”,
“params”: {
“missingProperty”: “name”
},
“message”: “should have required property ‘name’”
}
]

Good morning,

Could you try removing the hooks file? Or could you try adding names or changing the existing names in those files?

Thanks in advance!