Exe has stopped working

Hi All

I have a windev 20 application working perfectly in several installations, but in one of them the windows errror "TF_RB.EXE has stopped working. Windows is checking for a solution to the problem..." randomly appears and closes the exe. This program is installed in 10 windows 7/8 workstations (core i3 4GB) with HFSQL running in a windows server 2008 R2 (Xeon 16GB), the error occurs in almost all the workstations.

Any suggestions?

Thanks for your help!

Gabriel Marten