ford focus ghia 1.8 2006?

Last night my car would not open with fob. Opened car with key got out what i needed then locked it with fob. This morning the car opened with fob. when I went to start it it would not start. Then display read engine system fault, restricted speed mode.

Any ideas what this is?

Have now changed battery in fob thinking this was problem and still engine faults showing and it wont start.