I resign, i have to ask, googled a lot and tried many things but i can't figure out how to access my coins in the paperwallet.io (the site only creates paperwallet from what i saw)

Sorry for being stupid but i never used a paperwallet and i can't figure out how i can send my coins out of that paperwallet.
Which application or site do i have to log into to be able to manipulate my coins?

thanks