Grasshopper error

Hello guys!

Do you know what is this error? Also, I press close but it doesn’t close.

Thank you

This means that a component has been forced to run again during the definition run. It is as if during a relay race an athlete appears at the start, invalidating the race by going against the laws of physics or a very strong doping.

Thank you Dani! I understand so I suppose I made something with the wrong way