I have a simple Spigot server installed on a Rasperry Pi. So far so good. I log in and it works, until I realize that when I mine a block it never reaches my inventory. No dropped block. Nothing is left behind, except a void which used to be occupied. I have seen others with this problem, is it just a quick permissions/settings file fix, or is it intended. It is not on adventure, it says survival on the console window when starting up. It's really weird. I have tried mining on other Spigot servers powered by Pis, and it didn't work, yet the server admin put up a bunch of signs.
What do I have to do to configure the server to work correctly? Am I accidentally using a "unstable/uncompleted" build? (It says 1.6.4) Is this not a feature yet? Is there a mod that will fix this? Did the original admin of other servers use creative?