MWO patch pair runtime error?

Hi everyone,
I'm getting an error which is "runtime error, Error, Number of patch pair not equal to tree basis! 12480!=12481" while simulating EM structure of power amplifier in MWO. How can i solve this problem?
Could you help me please?

Hello yaskurt,

Which AWR Microwave Office (MWO) version you are using?
Upload your MWO file *.emp here will try to help you with the answers...

Hello manju,
I have fixed my problem.
I had many internal ports on EM(i was using internal ports for connecting lumped elements on PCB). After using edge ports instead of internal ports, my problem was solved.
MWO support has sent also this: https://awrcorp.com/download/faq/eng.../port_via.aspx

Thank you for your interest