Linux WinPower Setup

I am currently installing the WinPower UPS communication software but I am running into an error caused by I don't know what.

I have installed it successfully without errors

./agent start (starts agent ok)

./monitor (this is where it fails with the following error message)

Unable to locate the application's 'main' class. The class 'manager2.Manager2'
must be public and have a 'public static void main(String[])' method. (LAX)GUI-

I am hunting for troubleshooting but everything I come across is either unhelpfull or in russian :/