Hello, I'm simulating in a northern region of Chile, about 1300m above sea level, and when I try to input manually the irradiation data from local meteorological institute (Explorador Solar) to register a geographical site, PVsyst gives me the following error: "April : this value of global irradiation corresponds to an irrealistic clearness index Kt=0.84" ...and for some other months as well. Do you think the data is wrong or is it a bug..? If the latter is the case, how to solve it?