Cause
You have placed a terminal as a part placement (function definition "Part placement, Terminal") on a mounting panel. But the associated terminal and terminal strip definition in the schematic have a different part number than the part placement of the terminal on the mounting panel.
Solution
Allocate the same part number to the terminal and the terminal strip definition in the schematic as the one on the article placement of the terminal on the mounting panel.
Then start a new check run.