4.3.1 stopped working in El Capitan

The iOS version works on iPhone, iPad, but when I booted this am the El Capitan version just says “not responding.”

I deleted it from computer, restarted, reinstalled from app store; same problem. Have to force quit.

Looked for plist to delete, but don’t find anything for Omni*.

Any help appreciated.

Thanks

I’m running OO 4.4 and it works perfectly in El Capitan. Maybe try installing the latest version https://www.omnigroup.com/download/latest/omnioutliner/