Some plugins may produce the error "Error : The ConnectionString property has not been initialized." "Module : PermissionDemand"

Plugins which use the Manager.Instance property may produce the following error:

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Error
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Error : The ConnectionString property has not been initialized.

Module : PermissionDemand
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OK
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Work-around is to not use the Manager.Instance property and instead use the Manager property available on all forms, business logic, collections and collection items.