Prob with ender 2 Pro

Basic Information:

Printer Model: Ender 2 pro
MCU / Printerboard: STM32F103 with a “28KiB bootloader” and serial
klippy.log
klippy (5).log (177.1 KB)

hello guys I have a little prob with my klipper and my printer (ender 2 pro) it refuses to work I have it yet well configure and flash someone could help me please

Describe your issue: my printer wont connect