Once I downloaded PlugMan 2.4.1, during the first start PlugMan will downgrade itself to 1.8.1

[15:14:47 INFO]: [PlugMan] About to download a new update: PlugMan v1.8.1
[15:14:47 INFO]: [PlugMan] Downloading update: 10% of 19971 bytes.
[15:14:47 INFO]: [PlugMan] Downloading update: 20% of 19971 bytes.
[15:14:47 INFO]: [PlugMan] Downloading update: 30% of 19971 bytes.
[15:14:47 INFO]: [PlugMan] Downloading update: 100% of 19971 bytes.
[15:14:47 INFO]: [PlugMan] Finished updating.
[15:14:47 INFO]: [PlugMan] A new update has been downloaded. Please restart the server for the changes to take effect.

[15:21:04 INFO]: CONSOLE: Reload complete.
plugman
[15:21:05 INFO]: [PlugMan] v1.8.1 by ryanclancy000
[15:21:05 INFO]: - To view commands, do /plugman help`

Apologies for the delay - I've been travelling for the past 2 months.

The latest version from my Jenkins has the auto-updater removed, please give it a try and let me know how it works.

https://ci.ryan-clancy.com/job/PlugMan/job/master/12/artifact/target/PlugMan.jar