brake light not working indicators not working side and brake flash when in?

My earth was completely burnt out on the drivers side rear of my Peuguot 307 56 reg and none of the lights were working to that area/cluster, so I followed a quick fix reconnecting the earth with new wire via a patch wire and now :-
I have now got some lights where as before I had none but
brake light not working when brake pedal is pressed
indicators light not working, but the side and brake lights flash alternately when indicator is switched on
My side lights are fine but no reversing light
Any advice please?