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Microsoft Teams | Microsoft Teams (kostenlos) | Andere
Zusätzliche Features, Einstellungen oder Probleme, die nicht von bestimmten Microsoft Teams Free-Kategorien abgedeckt werden
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Sorry to hear you're having trouble.
I have looked up the app you mentioned and it seems as though it's an open source app. This would mean that Microsoft may not support it specifically. What I would like to suggest here would be to check out the app Blog or Forums as listed on this page https://www.zotero.org/ to see if others have had similar issues that they fixed.