Issue solved. Thank you for the SQLite tip, it set me on the right path. It turns out though, that I needed to install mono-complete package and run Manager through mono. I did the following things:
- I followed the instructions in this thread for “Installing Prerequisite Software” : Manager wont start ubuntu 14.04
- I installed mono-complete package
- I ran the application using mono with command: sudo mono /opt/manager-accounting/ManagerDesktop.exe
I am now able to run the appcication, and I am indeed able to import the business as well which solves the original problem as well. Thanks for the help.