SAP Message UI001 - Internal errror; location: &/&; Cause: &

Diagnosis
The program Data Modeler recognized a situation that should not occur.In order to prevent further damage, the Data Modeler intentionallycancels the program.
The internal error occurred in the following program unit:
1. Unit: &V1&
2. Unit: &V2&
The cause of the internal error is:
V3

Procedure
Please print the termination message. In addition, note which actionsand input led to the error.
Please contact your SAP administrator to deal with the problem further.