classified bookmarking problems

[trix-a-belle]

They seem to be very hit & miss about working at the moment; Either it tells me I need to log in but when I click log in it recognises me so I go back to the ad but it still doesn't say i'm logged in so I can't bookmark it, or I can hit bookmark and then when I hit update it just refreshes the advert and doesn't bookmark it. I have had these problems several times over the last couple of months.
Please could someone look into it