… there are a lot of ideas within the forum and also within the official FAQs ( see above posts ) 
The common thing I have in mind is, that former was the Google-Map-Replacement installed and that @Rafapiloto195 forgot to clean its windows hosts file : so please check e.g. World map zoom in hangs/crashes the game - #13 by MichaMMA
Other common things are like login-issues, anti-virus-tool, somewhat within community-folder if not cleaned while re-install, old %AppData% files ( e.g. rolling-cache … see also https://flightsimulator.zendesk.com/hc/en-us/articles/4408886545938 ), etc… Would be nice if we get some info what was already tried.