Hey Skry. Thanks for the detailed reply. I have repartitioned the sd card. And reinstalled everything. I will try to see if that works now.

Also, I found this weird:
1. During all these errors, the only way out was to remove the battery. Pressing the power button did nothing.
2. Removing the back cover caused the system to think that the memory card was offline and unusable.

I will enable the boot options as you said and see.