Error launching Tool after upgrade

[opsguy]

Hi, I upgraded from version 2015 to 2020. I may have 2019 installed as well. I uninstalled all previous versions and installed version 2020. When I launch it asks for password for data file, that I don't remember, then throws an unhandled exception. Is there a way to do a fresh install? I have a back rde export. Below is exception detail from eventviewer:

Unhandled Exception
An unhandled error occured in the application. You should restart the application to prevent further problems.

Unhandled Exception
An unhandled error occured in the application. You should restart the application to prevent further problems.
Object reference not set to an instance of an object.

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  at CloudAdminDataAccess.FileDataAccessor.BaseItemGet(Guid itemId, Guid userId)
  at CloudAdminDataAccess.FileDataAccessor.BaseItemGetAll(Guid userId)
  at CloudAdminCommon.Access.DataAccessor.GetRootItems(Int32 treeNum)
  at CloudAdminConsole.MainForm.LoadAllData()
  at CloudAdminConsole.MainForm.BuildNavigationTree(Boolean refreshOnly)
  at CloudAdminConsole.MainForm.backgroundWorkerInitEnvironment_RunWorkerCompleted(Object sender, RunWorkerCompletedEventArgs e)
  at System.ComponentModel.BackgroundWorker.OnRunWorkerCompleted(RunWorkerCompletedEventArgs e)

[DevOma]

First you have to rename/remove your profile.xml from %AppData%\Roaming\ASG-RemoteDesktop\13.0

Then you will be asked at the next start if you want to create a new environment - choose yes and create a new environment - there you can import your data - or if the file from version 2015 is not password protected you can copy your data file into the 2020 directory and choose it as your data file - it will be used/migrated automatically

[opsguy]

First you have to rename/remove your profile.xml from %AppData%\Roaming\ASG-RemoteDesktop\13.0

Then you will be asked at the next start if you want to create a new environment - choose yes and create a new environment - there you can import your data - or if the file from version 2015 is not password protected you can copy your data file into the 2020 directory and choose it as your data file - it will be used/migrated automatically

Thank you. Greatly appreciate your help. That did the trick.