On opening a project in PowerConnect, you get the error:
[NL]: De aangevraagde waarde CE21 is niet gevonden.
The project you’re trying to open was made in version 2022 (or newer), while you try to open it in 2021r03 (or older). CE21 is a Spanish standard implemented in 2022. Older versions of Diamonds don’t recognize it resulting in the error.
Click the error away and continue your calculations.