HTTPService: error creating server socket: Address already in use

[graz-lag]

I'm in the process of installing MinimServer on Linux Mint 17.1, and am facing issues :

- the launch icon does not appear on my desktop
- the "startc" command prompts me with the following error message :

HTTPService: error creating server socket: Address already in use
MinimServer error: now stopped, use 'restart' or 'exit'
Enter command (? for help), or null to exit:

Pls. see the attached screenshot ...

Java version "1.7.0_75" is apparently installed successfully. (Pls. see the attached screenshot)

Thank you so much foy your help !!!