Clear Sky Chart Not found

The chart-id BnbkCON is not valid.

It's possible that chart has been removed, or the chart-id is is mispelled.

To find or browse current clear sky charts look here.

Clear Sky Chart Home Traceback (most recent call last): File "sunmoondata.py", line 465, in init(p) File "sunmoondata.py", line 330, in init p.title = my_chart_dat.title+" Clear Sky Chart" AttributeError: 'NoneType' object has no attribute 'title'