l18n Error: Missing interpolation value - product replaced

Hi everyone!

Please could you help me with this l18n Error

A client selected and bought one product, but then it had been replaced by another product. When the client review her orders she found Next to the new product name says:
l18n Error: Missing interpolation value “fecha” for “Realizado el” {{fecha}}" - in Spanish

We reviewed her order but we don’t see trace of the original product she had selected.

This happened with 2 different clients.
Thank you!