Patient search then selection brings error

I haven’t used openmrs for a year now. When I search for a patient and click on the name this is the error I get in return. How can I fix it? Windows7, Apache tomcat 6.0 & openmrs 1.9.7.

Which version of java are you running?

Do you get the same error if you use OpenMRS version 1.9.12?

Java version 7, I haven’t tried this version of openmrs yet

Can you try it out?

I’m gonna try it then give you a feedback. Thanks so much

I undeployed the openmrs WAR file and deployed it a fresh and it worked. Thanks so much for your time n the will to help me out. I’m so greatful, I look foward to work together with you. :smiley: