Octavia 2.0tdi CR help please

Hi I just buy Skoda Octavia 2.0tdi Cr I have this fault codes can anyone help aslo Car start and drive good but if I turn the ignition on I don't have any warning lights like immobiliser ABS AIRBAG glow plug light all the light missing, just handbrake (P) light is still on I change the handbrake switch aslo I check brake fluid level but it's full then I change brake switch but  it's still on also oil light flashing not sure what's wrong I buy the car last week last owner said there is problem with handbrake switch but that's not the problem it's here in Birmingham anyone who can fix that Thanks