Log "subscriptions"

Hello,
Does anyone know what this log means please?

Tried to register a path/listener combination that is already in the model. Value: TagSubscription(path=[CSM]COP00000/PDM00654/Rittmeyer/debit_Rittmeyer/Debit, listener=com.inductiveautomation.perspective.gateway.binding.expression.ExpressionBindingTagListener@e8c10e7)

Thank you

See this post.