Issue with the script prepareRequestMove.ps1

Hello,
I have an issue with the script to prepare migration between 2 forest.
I have an ou: OU=Users,OU=Migration,DC=Infra,DC=Priv, and when i run the script, i have the message:

AVERTISSEMENT : Object Found:CN=Users,DC=infra,DC=priv

AVERTISSEMENT : Object Found:OU=Users,OU=Migration,DC=infra,DC=priv

Error looking up local OU, Error Msg: Multiple objects found in AD.

Au niveau de C:\Sources\Prepare-MoveRequest.ps1 : 786 Caractère : 14

+         throw <<<<  "Error looking up local OU, Error Msg: $($Error[0])"

    + CategoryInfo          : OperationStopped: (Error looking u...ts found in AD.:String) [], RuntimeException

    + FullyQualifiedErrorId : Error looking up local OU, Error Msg: Multiple objects found in AD.

If i change my OU in OU=Users2,OU=Migration,DC=Infra,DC=Priv, the script work fine