Cracked people are joining my server!

Help! My server is in online mode, I use YAMS and cracked players are joining my server! I saw some guy with this really bad username and I used this:

https://minecraft.net/haspaid.jsp?user=MrUdderBudder9

He joined my server but he is cracked! How do I fix this? How do I verify my server is in online-mode?

 

Check your server.properties

 

he is using hacks? or any internet hacks?

 

We don't support offline server

 

There are multiple ways to ensure your server is in online mode. Check your server.properties - online-mode=true should be set. Now examine your logs, does it state anything about offline mode?

 

LOL

 

that could be his actual minecraft name......I know a players name is BitchPleasse and thats a legit account....

 

anything; ban them

 

But guys goto the minecraft.net website premium player authenticator, it says false D:
Now if you check out my username (xGoldenlight) it says true?
It is in online mode. At least thats what the console and properties file says...

 

Removed spam post.
Firebomb24 Paste server.properties, startup bat, and startup log using www.pastebin.com please.