Connect ERPGo CRM to WhatsApp api using webhook

I need help connecting ERPGo CRM with WhatsApp via the Whatsbox API using webhooks. Everything is set up, but the webhook call fails.

Requirements:
- Trigger WhatsApp messages for:
- Lead creation
- Project task creation
- Message type: Message only (no attachments or contact details)

Ideal Skills and Experience:
- Experience with ERP systems and WhatsApp API integration
- Proficiency in handling webhooks
- Ability to troubleshoot and resolve webhook call failures

Work will be done via AnyDesk only.