Application blocked for security error

Application blocked for security error

One of our technicians (only one) is getting a "Certificate has been revoked. the application will not be executed." error when copying and pasting his notes into the resolution field. 
He is not on remote access and is set up with the same firewall settings as everyone else. Why would only one technician get this error. 

below is the error and the general exception details. 


 

General Exception details:

java.security.cert.CertificateRevokedException: Certificate has been revoked, reason: UNSPECIFIED, revocation date: Sat Jun 11 15:07:08 EDT 2016, authority: CN=COMODO RSA Code Signing CA, O=COMODO CA Limited, L=Salford, ST=Greater Manchester, C=GB, extension OIDs: []

            at com.sun.deploy.security.RevocationChecker.checkOCSP(Unknown Source)

            at com.sun.deploy.security.RevocationChecker.check(Unknown Source)

            at com.sun.deploy.security.TrustDecider.checkRevocationStatus(Unknown Source)

            at com.sun.deploy.security.TrustDecider.getValidationState(Unknown Source)

            at com.sun.deploy.security.TrustDecider.validateChain(Unknown Source)

            at com.sun.deploy.security.TrustDecider.isAllPermissionGrantedInt(Unknown Source)

            at com.sun.deploy.security.TrustDecider.isAllPermissionGranted(Unknown Source)

            at sun.plugin2.applet.Plugin2ClassLoader.isTrustedByTrustDecider(Unknown Source)

            at sun.plugin2.applet.Plugin2ClassLoader.getPermissions(Unknown Source)

            at sun.plugin2.applet.Applet2ClassLoader.getPermissions(Unknown Source)

            at java.security.SecureClassLoader.getProtectionDomain(Unknown Source)

            at java.security.SecureClassLoader.defineClass(Unknown Source)

            at java.net.URLClassLoader.defineClass(Unknown Source)

            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 sun.plugin2.applet.Plugin2ClassLoader.defineClassHelper(Unknown Source)

            at sun.plugin2.applet.Plugin2ClassLoader.access$100(Unknown Source)

            at sun.plugin2.applet.Plugin2ClassLoader$2.run(Unknown Source)

            at sun.plugin2.applet.Plugin2ClassLoader$2.run(Unknown Source)

            at java.security.AccessController.doPrivileged(Native Method)

            at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Unknown Source)

            at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)

            at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)

            at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)

            at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)

            at java.lang.ClassLoader.loadClass(Unknown Source)

            at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)

            at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)

            at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)

            at java.lang.Thread.run(Unknown Source)

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