I've been a premium user since 2013. I turned off Evernote in frustration at the v.10 product. Came back last night to give it another go hoping the many issues had largely been resolved - and I get this 'We're having trouble....' error on both Mac and Windows. Evernote v.10 is literally unusable and it appears the issue has been in existance for some weeks. Feels like a sinking ship. I have installed the legacy version for now.