Zoho Invoice app crashing on opening on OSX

Hello, we are currently evaluating Zoho Invoice as an option for our back end time tracking. We are all Apple based. I have tried to install it on four different macbooks, on two of them everything is perfect, but on the other two, the app is crashing during opening.

I have re-install it several times, but it does not make a difference.

How can we solve this?

Thanks,
Kamen