Oil leak from rotor filter bracket????

So I've found a oil leak after seeing a puddle on the floor yet again this morning.... Gotta love these land rovers

I changed the water pump last week and in the process I had to remove the rotor filter bracket..... Now it looks like it's leaking from the two rear bolts.... I can't say for sure but can't see where else the oil would be coming from

My questions are

Is there a gasket which I could of damaged ?
Is this a common leak on the td5 engines ?

If obviously disturbed something and will try to nip them up tomorrow but I'm sure I did this right the first time.

Any theories on how to stop the leak? I'm guessing oil is coming up from the oil feed pipe that feeds the filet and out from the bracket housing

Thanks