Azure Bot Deployment Troubleshooting

I need assistance with deploying my RAG bot on Microsoft Teams and Azure Bot.

Current Setup:
- RAG bot implemented using Azure OpenAI and AI Search.
- Deployed on Azure Web App, which is functioning correctly.
- Azure Bot and Teams Bot configured, but not responding.

Issues:
- Azure Bot returns "Authentication error."
- Endpoint /api/messages is unresponsive.

Ideal Skills and Experience:
- Experience with Azure Bot Services.
- Familiarity with Microsoft Teams bot deployment.
- Strong troubleshooting skills, especially with authentication issues.