Save failed ¿What is the problem?

When I want to save something, the system shows me this window.

This s the message for the support. Message:Business object with versionid A4160CB900003A6C5FC59F8A00022168 majorid A4160CB900003A6C5FC59F8A00022168 minororder 0 already exists. Severity:2 ErrorCode:1500842