System Breaking Fault

Hallo.



Sorry for my bad english, Iam Danish, and hope to get a solution for my Reault Grand Scenic III 2010 1.9 DCI problem



I have a message on the board computer " System breaking fault "



We have the garage to replace new brakes in the front and in the back with brake disc, and blocks

And new Brake fluid



Now after 8 days, IT pops again " System breaking fault "



Brake fluid is OK, half full



What now.



Please help, and a big huge thanks