Rhino crash out of memory when using Ladybug

Hi,

Since last week I have problems with Rhino that crashes when I launch radiation analysis on Ladybug. I have tried uninstalling a reinstalling rhino, grasshopper and ladybug but it still crashes.

The strange fact is that when I launch a first analysis it works but if I try again changing the analysis period or analysis surface, then it crashes. So the only way I found to keep on working, is by launching one analysis, saving the results, closing and re-opening everything. But I waste tremendous amount of time.. 

I think this problem started when I tried to launch two analysis at the same time (but different Rhino file and different grasshopper file). Before that, everything worked normally + the PC is new. And it's not a question of damaged file because I have tried with many different file that worked fine before. Also the analysis are very light, there's nothing heavy running and time of analysis is usually 1 min or 2. 

My PC is Dell Inspiron 17-7779 with 16GB RAM.

Thanks!