Problem creating a calendar event

Getting Started
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First I am a beginner… have limited knowledge on this and what i’ve able to do i did it researching here . but i still cant figure out the issues i am having.
I am creating a GPT where it automatically sets a calendar event in google calendar.

This is what in tools

The GPT is talking ok with the webhook "
" The event “Test New Events” has been successfully scheduled again for today, November 18, 2024, from 6:00 PM to 7:00 PM (EST). Let me know if you need further help!"

but nothing get created.
If i do it manually directly on the calendar module it works fine.
if i do it from the GPT is says:

BundleValidationError

Validation failed for 2 parameter(s).

  • Invalid date in parameter ‘start’.
  • Invalid date in parameter ‘end’.

what am i doing wrong?
Is the mapping wrong?
Here is the schema from my GPT

{
“openapi”: “3.1.0”,
“info”: {
“title”: “Google Calendar Event Creator”,
“description”: “API for creating events in Google Calendar”,
“version”: “1.0.0”
},
“servers”: [
{
“url”: “https://hook.us2.make.com”
}
],
“paths”: {
“/lsuv4w6xhtmqam2l6ve3a3kkj8y9r34g”: {
“post”: {
“summary”: “Send data to create Google Calendar events”,
“operationId”: “createGoogleCalendarEvent”,
“requestBody”: {
“required”: true,
“content”: {
“application/json”: {
“schema”: {
“type”: “object”,
“properties”: {
“event_title”: {
“type”: “string”,
“description”: “The title of the calendar event”
},
“start_date_time”: {
“type”: “string”,
“format”: “date-time”,
“description”: “The start date and time of the event in ISO 8601 format”
},
“end_date_time”: {
“type”: “string”,
“format”: “date-time”,
“description”: “The end date and time of the event in ISO 8601 format”
}
},
“required”: [“event_title”, “start_date_time”, “end_date_time”]
}
}
}
},
“responses”: {
“200”: {
“description”: “Event successfully created”,
“content”: {
“application/json”: {
“schema”: {
“type”: “object”,
“properties”: {
“status”: {
“type”: “string”,
“description”: “Status of the event creation”
},
“message”: {
“type”: “string”,
“description”: “Details about the event creation status”
}
}
}
}
}
}
}
}
}
}
}