What I will add is that before I simply re-connected them correctly, I tested both of them to ensure that both rings were continous (end to end continuity) and there were no interlinks elsewhere. Once reconnected, they both got a basic earth fault loop impedance test (with a sample of the outlets) to ensure that was up to scratch once connected properly.
This is not something you should do without proper test equipment and knowledge.
I agree with
@telectrix 's suggestion, give us a clue on your location and see if you can get one of us in to have a look.