Build a Website !

we are facing an error continuously from last 10 days , we have placed ads on our website , and then we put div on it to cover it . but now ads are not working , when we click on add it shows some php error instead of opening the adds page . check it in the given link . click any one the top one add we placed a div on it , after click you will get an error , study it properly and then bid . website : ([login to view URL]),