Question: Slider not working in maplenet11

I cannot make a worksheet function as it should in MapleNet 11. It contains a graph and a slider to adjust the graph. It looks fine, but when I try to read the value of the slider I get an error message "Error: ecslider17 not found". The worksheet works perfectly in "offline Maple".

 

Any suggestions how to fix this will be most welcome.

Please Wait...