Problem Switch Hosting/Server crash on startup

[Gothik]

• OS: Minecraft Gameserver (Debian 7) (64bits)
• Dedicated Kimsufi server
• FTB Infinity 1.6.2
• No extra mods have been installed
• Server Specs: Core™ i5-750 quad core 2.67 GHz+ 16 GB RAM

I had been using mcprohosting and switched to a dedicated kimsufi server.
I have been able to import my world into mineos on the kimsufi with no problems.
Upon server start up i get a crash.
A pastebin of my crash report
http://pastebin.com/8bzXKrx3
I have also uploaded it if needed

 

[mc.crab]

Caused by: java.lang.UnsupportedClassVersionError: net/techbrew/journeymapserver/JMServerForge : Unsupported major.minor version 51.0

You are using Java 6, Install Java 7 or 8.

 

[Gothik]

Thank you for a prompt solution to my problem.
Updating to Java 8 did the trick