NPM ERR : missing start

Pretty new to node.js, but i've gotten the hang of it, and i decided to clone this repisitory and tweak some stuff, of course, crediting the owner, as it is open source. But i Keep on getting this error.

npm ERR! missing script: start

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/runner/.npm/_logs/2021-03-24T10_06_14_272Z-debug.log
exit status 1

Not sure what im getting wrong here, sorry. Can someone help me??