Kosher Kingdom in Golders Green has been unable to sell alcohol for more than a week after it was revealed its alcohol licence had lapsed.
The supermarket, on Golders Green Road, was granted a premises licence in 2005 which authorised the sale of alcohol.
But last week a sign appeared telling customers that alcohol was temporarily not for sale.
A Barnet council spokesman said: "A recent review of businesses in the borough has highlighted that the premises does not currently hold a valid licence.
"This is due to the licence lapsing when the company's previous owners went into liquidation. It remains the responsibility of the premises' new owners to ensure they have all the correct documentation in place to allow them to continue selling alcohol."
‘We are hopeful that this will be sorted out by the new year’
Manager Rifki Rokach said: "There was a technical glitch. I'm not sure about the technicalities. We are hopeful that this will be sorted out by the new year."
To get more from community, click here to sign up for our free community newsletter.