true hell with Powercivil SS4

All day, I just restart the program,  which still crashes and reports a number of bugs. Reopen the program, click on the first line, change the definition, and again the out of memory error. I Can not move with geometry, everything reports bugs. I deleted all reference files and remain only 15MB large file, but without effect, nothing can still be done. Of course, the system has 90% of free memory. Ok I delete all parametric constraints (often cause mistakes) and finally something can be done, i can move with geometry again! But parametric constraints can no longer be imported back, or create new ones, all causes errors, only open menu objects of the corridor causes a error (out od memory)... I can start making a corridor from the beginning again and hope it will not happen again!! Is there a user who is satisfied with Powercivil SS4, especially in the Czech Republic? So for me, buying this malfunctioning program is a terrible mistake and I hope this is my last work with this program. If anyone is considering buying this program, it's a clear madness.
Your pissed user !!!