Only update from v2.0.0-rc1, or do a fresh install!
If you are using version 1.4.4, you do not need to update anything.
The zip is very small now because it only contains a download link to the actual resource (Spigot didn't let me upload the file becauses it was too large, and it also didn't allow me to specify an external url)
Fixed SSX-Connector system not working in v2.0.0-rc1
Added jar file for 1.13 servers (it's the same plugin as for 1.14, but with the api version set to 1.13 so spigot will load it)