Roon will not open on Mac book

Apple Mac 2.8Ghz i7. IOS 10.9.5

Roon has worked perfectly for years on my Mac but now when i open Roon I get the following message. Any ideas what the problem is? Thanks

Hi @simon_rickers,

Please see my post here:

This topic was automatically closed 365 days after the last reply. New replies are no longer allowed.