Maximo Open Forum

I am creating a new dashboard and adding work queues.  I have added a few from wotrack and  1 from purchase requisitions and was adding from purchase orders when i received this error message.  I checked all of the objects structures and security but still keep getting this message.  I didn't see this error until i added the purchase orders and now none of my work views are visible can someone please assist. Below is a screen shot of my error.