I don't know why this is happening

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #000000; background-color: #ffffff} span.s1 {font-variant-ligatures: no-common-ligatures}

>WARNING: An illegal reflective access operation has occurred

WARNING: Illegal reflective access by io.netty.util.internal.ReflectionUtil (file:/Applications/untitled%20folder/craftbukkit.jar) to constructor java.nio.DirectByteBuffer(long,int)

WARNING: Please consider reporting this to the maintainers of io.netty.util.internal.ReflectionUtil

WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations

WARNING: All illegal access operations will be denied in a future release

i found this when i started my server and then when i go into minecraft i can't even join my server

 

The full error log use pastebin.com. Also you can try removing plugins one by one to see which plugin is the issue.