Can not install patch 7914 in Linux

Hi!

Forgive my English.

I trying to upgrade my SupportCenter Plus (version 7804) to a newer 7914.

My command is:

sh UpdateManager.sh -c -option i -ppmPath /opt/jboss/upgrades/ManageEngine_SupportCenter_Plus_7_9_0_SP-1_4_0.ppm

When I see error:

Starting mysql server
reverting in preprocessor
=======================================================
Error : Please wait reverting to old build!!!
1. Renaming modified mysql
2. Extracting backup mysql
=======================================================
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.adventnet.tools.update.installer.RevertPatch.revertPreInvocationClasses(RevertPatch.java:866)
at com.adventnet.tools.update.installer.Unzipper.failureRevertAbsolute(Unzipper.java:552)
at com.adventnet.tools.update.installer.Unzipper.contextPreInstallation(Unzipper.java:335)
at com.adventnet.tools.update.installer.Unzipper.invokePreInstallationClasses(Unzipper.java:138)
at com.adventnet.tools.update.installer.ApplyPatch.installPatch(ApplyPatch.java:273)
at com.adventnet.tools.update.installer.ApplyPatch.run(ApplyPatch.java:223)
at java.lang.Thread.run(Unknown Source)
Caused by: java.awt.HeadlessException:
No X11 DISPLAY variable was set, but this program performed an operation which requires it.
at java.awt.GraphicsEnvironment.checkHeadless(Unknown Source)
at java.awt.Window.<init>(Unknown Source)
at java.awt.Frame.<init>(Unknown Source)
at java.awt.Frame.<init>(Unknown Source)
at javax.swing.SwingUtilities$SharedOwnerFrame.<init>(Unknown Source)
at javax.swing.SwingUtilities.getSharedOwnerFrame(Unknown Source)
at javax.swing.JOptionPane.getRootFrame(Unknown Source)
at javax.swing.JOptionPane.showOptionDialog(Unknown Source)
at javax.swing.JOptionPane.showMessageDialog(Unknown Source)
at javax.swing.JOptionPane.showMessageDialog(Unknown Source)
at javax.swing.JOptionPane.showMessageDialog(Unknown Source)
at com.adventnet.servicedesk.updatemgr.util.SCPreProcessor.revert(SCPreProcessor.java:687)
... 11 more
Unexpected Error
Uninstallation Completed