Path based tracking is defined in contact pair error

Hi everybody,

I am trying to simulate a channel forming (an existing examples of Abaqus, Getting Started with Abaqus 12.6). unfortunately, I have faced to warnings and also an error. As I mentioned at the title of the post, one the warnings which has been frequently appeared  is "Path based tracking is defined in contact pair " . It would be appreciated if you let me know what the answer is. Exactly, I would like to know how I could eliminate the warning and get the results. Besides, the error is: "The independent variables must be arranged in ascending order".

It would be appreciated your quick reply

Thanks