wont upgrade or restore data fully

wont upgrade or restore data fully

Hi, all, I am having major issues here :(
 
I was trying to upgrade to the latest version and it failed at 98% "unable to uninstall"  I thne reinstalled the previous version and restored the database, only to have http 500 errors in the dashboard.
 
So it looks like I have lost my database and teh upgrade is not working :(  I have now tried this on 3 different machines and just uninstalling yo try and restore the data back to the first version I used.
 
Hope somebody can give me some advise/help to get this upgraded
 
 
Cheers]]Dave

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