Download the original stockfish engine with the link below:
https://www.mediafire.com/file/b7pkmgtcd1l8tng/stockfish_15.1_linux_x64.tar.gz/file
After uextracting the folder, put it inside your program's destination and open terminal to run the following command:
chmod +x stockfish-ubuntu-20.04-x86-64
Download the original stockfish engine with the link below:
https://www.mediafire.com/file/nb0lslewmgoc6vi/stockfish_15.1_win_x64.zip/file