ErgpCRM to WhatsApp Integration using webhook

I'm looking for an experienced developer to connect ErgpCRM with the Whatsbox API. The goal is to automatically send WhatsApp messages whenever a lead, project, or task is created in the CRM.

Key Requirements:
- Set up a webhook to trigger WhatsApp messages on:
- Lead creation
- Project creation
- Task creation
- Fix existing error: "Webhook call failed" upon lead creation

Ideal Skills and Experience:
- Proficiency with ErgpCRM and Whatsbox API
- Strong experience in setting up and debugging webhooks
- Familiarity with handling API integrations
- Problem-solving skills to address and fix errors

Please provide your approach and estimated timeline.