Smart Switches Repair in Residential Lighting

I'm seeking an experienced electrician or technician to diagnose and repair my residential lighting system. The issue appears to be with some smart switches; while others work perfectly, a number of switches are completely unresponsive.

Key Requirements:
- Expert knowledge and experience with smart lighting systems
- Ability to troubleshoot and repair electrical systems
- Strong communication skills for explaining issues and solutions

Please include your relevant experience in your bid.

It is an old crestron system