I cannot install a toolbox I downloaded

[Phenyo Moletsane]

Hi

I have just downloaded M5PrimeLab toolbox, and struggling to install it on octave.

I am using the following command: 

pkg install M5PrimeLab.zip

I get the following error

package is missing file: COPYING

error: called from

    install>verify_directory at line 335 column 7

    install at line 109 column 9

    pkg at line 394 column 9

Please assist me. Thank you