Leaking under sink

06608124

Hi

See attached. I have a leaking fixture under my sink when I turn on the tap, seems to be from the lower joints but not sure.

When I moved into house, it used to leak on and off, if I moved it a little, it wouldnt leak for months but then would again for a few days and make a mess under sink.

A year ago I paid a plumber 100e or 140e ( I can't remember ) to fix it. Really annoyingly, the next day it was leaking again, used 2 towels to clean the mess it made and called him back but when he came back a few days later it was fine again so nothing else from it.

It didn't bother me since but now leaking again. Any suggestions ?

Thanks a mil