[16:40:06] [Server thread/INFO]: Preparing level "world"
[16:40:06] [Server thread/ERROR]: Could not set generator for default world 'world': Plugin 'Realistic_World' does not exist
[16:40:10] [Server thread/WARN]: Unable to find spawn biome
[16:40:11] [Server thread/WARN]: Unable to find spawn...
I'm trying to download version 6.4.0 but it won't let me. I click the 6.4.0 version and it just sends me back to the page. I can only download the latest version.