SD card is not working properly on ESP32 Micropython

[wajidali4]

Hi,
i am using M5 stack core 2 board and using its built in SD card function to save data on it ,there is continuous data to save data but at some point it stop working and giving error of the line os.mount(sd, '/sd') then the card need to be reinserted after stoping the code then its start to work my SD card initialization and make directory as follow # SD card initialization as follow

sd = machine.SDCard(slot=2, sck=machine.Pin(18), mosi=machine.Pin(23), miso=machine.Pin(38), cs=machine.Pin(4))
os.mount(sd, '/sd')

Create SD directory

try:
os.mkdir("/sd")
except OSError as err:
if err.args[0] != 17:
raise

i did not save the function in boot.py or main.py just running at in the prompt for testing .Can anyone help me to get rid of this problem i would aprreciate your Feedback.Thanks