Design Simple band pass filter in CST Microwave Studio

Hi freinds

I have designed simple band pass filter using CST MWS 2008.
I used CST Microwave studio from CST design environment.
after design the band pass filter in CST microwave studio, there is another block (default) MWSSCHEM1.
How can i remove this. because when i click update button, it says "Unable to built S-matrix for block MWSSCHEM1" as shown in Figure 1

there is another problem in upper frequency limit as shown in figure 2
plz any one help me

Thank you

kaandee