Indicator disappears from the Navigator Window

Hi. After installing a new indicator, it disappears. 


JPS1:

Hi. After installing a new indicator, it disappears. 



Check your Experts tab in the terminal. There is probably an Array out of Range error, or divide by zero.
honest_knave:

Check your Experts tab in the terminal. There is probably an Array out of Range error, or divide by zero.
Thank you