Your error is:
Timeout with MCU 'mcu' (eventtime=61369.534085)
Transition to shutdown state: Lost communication with MCU 'mcu'
See Timeout with MCU / Lost communication with MCU for more details. Unfortunately this kind of error is hard to come by.
What is striking:
max_accel: 700.000000
max_accel_to_decel: 350.000000
square_corner_velocity: 10.000000
toolhead: max_velocity: 2000.000000
max_accel: 700.000000
max_accel_to_decel: 350.000000
square_corner_velocity: 5.000000
toolhead: max_velocity: 2000.000000
max_accel: 1000.000000
max_accel_to_decel: 500.000000
square_corner_velocity: 5.000000
toolhead: max_velocity: 2000.000000
max_accel: 1000.000000
max_accel_to_decel: 500.000000
square_corner_velocity: 10.000000
toolhead: max_velocity: 2000.000000
max_accel: 700.000000
max_accel_to_decel: 350.000000
square_corner_velocity: 10.000000
toolhead: max_velocity: 2000.000000
max_accel: 700.000000
max_accel_to_decel: 350.000000
square_corner_velocity: 5.000000
Your log shows an insane amount of seemingly unnecessary changes like above (multiple times a second). At least I could imagine that this is a contributor