my question is about design wireless network in opnet

hi everyone i need help in my project it is handover and when i add mobile node and 2 server in opnet modeler and after run the simulation i have this error
<<< Recoverable Error >>>
Process model (gna_ace_task_cli) compilation failed
due to error on source line (23)
Errors given in file (C:\Users\zina\op_admin\tmp\cc_err_6068)
can u help me please? or can anyone give me procedure about my project?