Invalid datetime

it start normally first time, second time:

advice?

Hi @dobsun,
do you get this error whenever you start the app or when you try to open a project file?

Regards,
willvin

Hi @willvin,
on start of the app, windows 10 pro…
I did not create any project…
BR

The same problem happened with me in RadSystem ver. 4.5
The application work for first time after install only, then after that it shows this message each time I start It
My main windows language is English but I use Arabic also, I try to remove Arabic language and reset all windows regional setting but problem not solved!

@aalfifi this is because you activated the product with a different language and region. Please uninstall the application with an app like Revo uninstaller. then reinstall and activate it again.