All MECOOL M8S Pro+ users eyes forward and pay attention:
The majority of faulty eMMC Storage chips and boards seem to be stamped KLMAG1JENB - B041
If your box is exhibiting freezing and crashing it is going to be useless going forward. You have a box with faulty hardware.
Once the eMMC storage bootloader area fails then no more LibreELEC. Forget about even trying to fix it.
This is the thread you should refer Geekbuying or Gearbest to when talking about Frozen M8S Pro+ boxes:
I would not even mention LibreELEC. These faulty boxes are dying simply by doing a regular OTA Android Firmware Update.
The more times you re-flash the worse the problem seems to get.