Can't open Zotero on Mac all of a sudden

Hello there,

I'm in a bad position right now, as I'm currently writing my thesis and can't open zotero anymore. I was working with Zotero last week, made a pause for a couple of days and now, everytime I try to open it, a failure message occurs. My System is macOS10 (yeah, bit dusty, I know) and the Version of zotero is 5.0.66.

Does anyone know, why I can't open and therefore access my library anymore?

Kind regards and thanks in advance,
  • First, upgrade Zotero to the latest version.

    If it’s still happening after that, what’s the exact error?
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