Where to find Zotero 5.0.94 or later?

And please don't tell me to simply upgrade my Zotero from the Zotero site, 'cause that's exactly what produced the problem in the first place:

I allegedly downloadet and upgradet to the newest version of Zotero by following a link from my Zotero app to the Zotero homepage and proceed to download the newest version a couple of days ago. However, after doing so I cannot even open Zotero and get to my litterature! Instead it now comes up with the following error message:

This Zotero database requires Zotero 5.0.94 or later.
Current version: 5.0.57
Please upgrade to the latest version from zotero.org.

It doesn't make sense.. Can anyone help??
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