How to Update from El Capitan to Catalina?

How to Update from El Capitan to Catalina?

My uncle recently passed down his intel NUC Hackintosh to me only I have no idea how to update it. The OS version was El Capitan and I tried searching up youtube videos to help me update it. I downloaded clover configurator and updated clover. Now when I restarted the NUC errors popped up and i am not able to view the SSD in where the hackintosh is. The errors are:

https://preview.redd.it/e477dropiy571.jpg?width=720&format=pjpg&auto=webp&s=b817ba95fd80722fda9e1c23d2622d901584c773

Im stuck in the black menu screen with the clover at the center and the start UEFI shell 64, Clover boot Options, options, etc.

Any help with recovering my SSD or updating the OS will be very much appreciated!

submitted by /u/Rayner_Subaru
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