adobe digital editions will not open

I have recently installed adobe digital editions onto a windows 10 laptop. It worked fine initially but now it stays as a minimised thumbnail on the taskbar and will not open. It thinks it is open - it flashes and if I right click it gives me the option to close the window. I have run the compability troubleshooter but it has not helped. I have restarted multiple times because sometimes that helps - but not today. Any suggestions for what I can do? The chatbot was useless.