Lost Correct Security Identifier (SID)

In my NT server event view, it got error like this
“The computer ‘USER3’ tried to connect to the server ‘MAINSERVER’ using the trust relationship established by the ‘OFFICE’ domain. However, the computer lost the correct security identifier (SID) when the domain was reconfigured. Restablish the trust relationship.”
‘USER3’OS is NT Workstation
Please tell me detail why cause this error??
And what the solution??