[Getdp] Question, error message "Error : Abnormal server termination (Socket listening timeout on socket /Users/labarrerelois/.gmshsock2)"

[labarrere Lois]

Dear all, 

I am a new user of getup. 
I did the instal of getup and Gmsh on my Macbook 10.7.5. 
I load the example "magnets" and try to run it. 
The mesh is done, but before the end of the computation, I have the error message : 
"Error   : Abnormal server termination (Socket listening timeout on socket /Users/labarrerelois/.gmshsock2)" 

I don't know what to do. 
I tried "Option" --> "restore all options to defaults settings"
But nothing changes. 

If someone can give me an advise, I will really appreciate. 

Thanks  in advance
Regards
Loïs