Meaning: Axis collinear frame connections require the two member systems to be collinear. This error can be caused by moving one of the members or its end; or by using a paste operation of a member with an axis collinear frame connection. A member with an axis collinear frame connection might be moved such that the supported and supporting members are no longer parallel. The condition can occur is copying a member with an axis collinear frame connection, pasting the member into a model, and selecting a non-parallel member when establishing the axis collinear connection in the Paste Special dialog box.
Recovery: You can either modify the ends of the members to make the members parallel again, or you can delete the axis collinear frame connection and place an axis along frame connection instead.