Fix Arduino Compilation Errors and the esp32 module and temp sensor should be working

I need assistance in resolving compilation errors with an existing source code for the ESP32 Dev module connected to a temperature sensor (MLX90640/MLX90641). The code has previously worked on Arduino 1.9 or earlier, but is now failing on Arduino 2.3.4.

Requirements:
- Identify and fix compilation errors
- Ensure compatibility with Arduino 2.3.4
- Maintain current hardware setup