After translating, I found it said "Object Reference is invalid".
That means on one of your wires, possibly that hidden purple one, a value is no longer valid. Perhaps you never selected or opened the reference properly. Perhaps you had, but you lost a value because you did something like run it thorough a case structure, but failed to wire all the cases through. (A common problem when someone uses a tunnel set for Use Default if Unwired.)
It is impossible to tell anything else from such a tiny image that barely shows any block diagram.
PS: When posting a message, give it a meaningful subject header. "labview" is meaningless because every message on the LabVIEW forum (note the proper spelling) is going to be about LabVIEW.