Hmmm.. something really wrong has happened.
Generally speaking, that error means that for some reason, the MCU has received more moves than it can store in the internal memory. The host is aware of the queue size, and the host ensures that this does not happen.
Queue size is 1024.
According to logs, host queued <100 moves.
Starting Klippy...
Args: ['/home/ss/klipper/klippy/klippy.py', '/home/ss/printer_data/config/printer.cfg', '-I', '/home/ss/printer_data/comms/klippy.serial', '-l', '/home/ss/printer_data/logs/klippy.log', '-a', '/home/ss/printer_data/comms/klippy.sock']
Git version: 'v0.13.0-152-gf54b7b937-dirty'
Untracked files: klippy/extras/gcode_shell_command.py
Branch: master
....
Loaded MCU 'mcu' 149 commands (v0.13.0-140-g2dd73d043 / gcc: (15:12.2.rel1-1) 12.2.1 20221205 binutils: (2.40-2+18+b1) 2.40)
MCU 'mcu' config: ADC_MAX=4095 BUS_PINS_i2c1=PB6,PB7 BUS_PINS_i2c1a=PB8,PB9 BUS_PINS_i2c2=PB10,PB11 BUS_PINS_i2c2_PF1_PF0=PF1,PF0 BUS_PINS_i2c2a=PH4,PH5 BUS_PINS_i2c3=PA8,PC9 BUS_PINS_i2c3a=PH7,PH8 BUS_PINS_sdio=PC12,PD2,PC8,PC9,PC10,PC11 BUS_PINS_spi1=PA6,PA7,PA5 BUS_PINS_spi1a=PB4,PB5,PB3 BUS_PINS_spi2=PB14,PB15,PB13 BUS_PINS_spi2a=PC2,PC3,PB10 BUS_PINS_spi2b=PI2,PI3,PI1 BUS_PINS_spi3=PB4,PB5,PB3 BUS_PINS_spi3a=PC11,PC12,PC10 CANBUS_BRIDGE=1 CLOCK_FREQ=168000000 MCU=stm32f407xx PWM_MAX=257 RECEIVE_WINDOW=192 RESERVE_PINS_CAN=PB12,PB13 RESERVE_PINS_USB=PA11,PA12 RESERVE_PINS_crystal=PH0,PH1 STATS_SUMSQ_BASE=256 STEPPER_OPTIMIZED_EDGE=21 STEPPER_STEP_BOTH_EDGE=1
....
Stats 7504.1: gcodein=0 canstat_mcu: bus_state=active rx_error=0 tx_error=0 tx_retries=0 mcu: mcu_awake=0.044 mcu_task_avg=0.000006 mcu_task_stddev=0.000004 bytes_write=3429606 bytes_read=1700981 bytes_retransmit=0 bytes_invalid=0 send_seq=95246 receive_seq=95246 retransmit_seq=0 srtt=0.005 rttvar=0.004 rto=0.025 ready_bytes=43 upcoming_bytes=0 freq=168011030 canstat_EBBCan: bus_state=active rx_error=0 tx_error=0 tx_retries=0 EBBCan: mcu_awake=0.019 mcu_task_avg=0.000016 mcu_task_stddev=0.000029 bytes_write=1697276 bytes_read=842098 bytes_retransmit=0 bytes_invalid=0 send_seq=49249 receive_seq=49249 retransmit_seq=0 srtt=0.006 rttvar=0.003 rto=0.025 ready_bytes=49 upcoming_bytes=0 freq=64001471 adj=63996842 host: mcu_awake=0.000 mcu_task_avg=0.000008 mcu_task_stddev=0.000011 bytes_write=26208 bytes_read=83121 bytes_retransmit=0 bytes_invalid=0 send_seq=4322 receive_seq=4322 retransmit_seq=0 srtt=0.000 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=49999711 adj=49998173 sd_pos=115768 mcu_temp: temp=37.5 heater_bed: target=90 temp=90.0 pwm=0.404 sysload=0.99 cputime=385.406 memavail=565884 print_time=7510.542 buffer_time=2.452 print_stall=0 extruder: target=240 temp=240.1 pwm=0.510
...
Resetting prediction variance 7504.875: freq=168011030 diff=-1534833 stddev=265762.291
Resetting prediction variance 7504.875: freq=64001471 diff=-492041 stddev=92538.281
Stats 7505.1: gcodein=0 canstat_mcu: bus_state=active rx_error=0 tx_error=0 tx_retries=0 mcu: mcu_awake=0.040 mcu_task_avg=0.000006 mcu_task_stddev=0.000004 bytes_write=3432347 bytes_read=1701573 bytes_retransmit=0 bytes_invalid=0 send_seq=95299 receive_seq=95299 retransmit_seq=0 srtt=0.003 rttvar=0.003 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=168009532 canstat_EBBCan: bus_state=active rx_error=0 tx_error=0 tx_retries=0 EBBCan: mcu_awake=0.019 mcu_task_avg=0.000016 mcu_task_stddev=0.000029 bytes_write=1698211 bytes_read=842305 bytes_retransmit=0 bytes_invalid=0 send_seq=49266 receive_seq=49266 retransmit_seq=0 srtt=0.006 rttvar=0.004 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=64000983 adj=63997283 host: mcu_awake=0.000 mcu_task_avg=0.000006 mcu_task_stddev=0.000009 bytes_write=26214 bytes_read=83150 bytes_retransmit=0 bytes_invalid=0 send_seq=4323 receive_seq=4323 retransmit_seq=0 srtt=0.000 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=49999708 adj=49998403 sd_pos=115956 mcu_temp: temp=37.4 heater_bed: target=90 temp=90.2 pwm=0.000 sysload=0.99 cputime=385.520 memavail=564444 print_time=7511.547 buffer_time=2.458 print_stall=0 extruder: target=240 temp=240.1 pwm=0.517
Resetting prediction variance 7505.859: freq=168009532 diff=-1232130 stddev=168000.000
Resetting prediction variance 7505.860: freq=64000983 diff=-374540 stddev=64000.000
Stats 7506.1: gcodein=0 canstat_mcu: bus_state=active rx_error=0 tx_error=0 tx_retries=0 mcu: mcu_awake=0.040 mcu_task_avg=0.000006 mcu_task_stddev=0.000004 bytes_write=3437775 bytes_read=1702330 bytes_retransmit=0 bytes_invalid=0 send_seq=95394 receive_seq=95394 retransmit_seq=0 srtt=0.002 rttvar=0.001 rto=0.025 ready_bytes=0 upcoming_bytes=814 freq=168008327 canstat_EBBCan: bus_state=active rx_error=0 tx_error=0 tx_retries=0 EBBCan: mcu_awake=0.019 mcu_task_avg=0.000016 mcu_task_stddev=0.000029 bytes_write=1700195 bytes_read=842581 bytes_retransmit=0 bytes_invalid=0 send_seq=49300 receive_seq=49300 retransmit_seq=0 srtt=0.007 rttvar=0.003 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=64000611 adj=63998337 host: mcu_awake=0.000 mcu_task_avg=0.000006 mcu_task_stddev=0.000009 bytes_write=26220 bytes_read=83166 bytes_retransmit=0 bytes_invalid=0 send_seq=4324 receive_seq=4324 retransmit_seq=0 srtt=0.000 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=49999704 adj=50003335 sd_pos=116555 mcu_temp: temp=37.5 heater_bed: target=90 temp=90.1 pwm=0.231 sysload=0.99 cputime=385.743 memavail=564000 print_time=7514.205 buffer_time=4.115 print_stall=0 extruder: target=240 temp=240.1 pwm=0.517
...
MCU 'mcu' shutdown: Move queue overflow
...
Dumping stepper 'stepper_x' (mcu) 42 queue_step:
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Dumping stepper 'stepper_y' (mcu) 35 queue_step:
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Dumping stepper 'stepper_z' (mcu) 9 queue_step:
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Dumping stepper 'stepper_z1' (mcu) 9 queue_step:
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Dumping stepper 'extruder' (EBBCan) 63 queue_step:
...
Weird 
I can only guess that something happen with time, but it does not seems severe enough to cause overflow.