I am facing #135000 Generic user error While sending template message from Whatsapp API.

I am getting this error in all templates except "hello_world" template. Two or three messages delivered successfully but then suddenly the error occurred and now getting same error in all templates.

API response

{ "error": { "message": "(#135000) Generic user error", "type": "OAuthException", "code": 135000, "error_data": { "messaging_product": "whatsapp", "details": "Generic user error" }, "fbtrace_id": "AHexIoeT5pe-KtgMFqG5Jbu" } }