Why does the adsorption energy calculated by the "Adsorption Locator" module produce a value in thousands?

I amazing Why does the adsorption energy calculated by the "Adsorption Locator" module produce a value in thousands? In this respect, I studied the adsorption of organic molecule on metallic surface using Monte Carlo simulation, the resultant adsorption energy range around -2000 kcal/mol. This value is contrary to the published and logic range, i.e., -200 kcal/mol. I use version MS 2017. Has anyone met this problem and how did you overcome it?


Thanks,

MO