Forest Homes review for Calconic ‑ Calculator Builder

Hi, I just realised my calculator was not functioning, I don't know since when! This has cost me a tremendous amount of sales! My sales were unusually low and I didn't understand why, given I was doing advertising, and this brings results to my store. Why does this calculator stop working like it wants? And never notifies the changes? This makes this application very unreliable :( and I'm very upset given I pay this calculator monthly for many years now. I'm very unsatisfied.