Workers Beer Company has apologised following complaints of lengthy bar queues at the Liam Gallagher and Queens Of The Stone Age gigs in Finsbury Park over the weekend.
Promoter Festival Republic said that fans deserved "a better bar service" and directed people to a statement by Workers Beer Company, owned by Battersea and Wandsworth Trades Union Council, which cited an "unprecedented failure of up to 40% of our staff to turn up".
The firm has operated since 1986, working on events such as Glastonbury, Reading & Leeds and Latitude, utilising staff "drawn from local grassroots organisations raising funds for their local campaigns and projects".
"Here in Finsbury Park on Friday and Saturday there was unprecedented failure of up to 40% of our staff to turn up," read the statement. "As a consequence people had to wait an unnecessarily long time to be served. For this we unreservedly apologise to the audience.
"So that it’s clear neither Liam Gallagher nor Queens Of The Stone Age should bear responsibility. They both delivered awesome gigs to awesome fans, that deserved better service from our bar operation.
"This is also the case for Festival Republic who have no responsibility for us letting down the audience and we have already apologised to them."
Live Nation-owned Festival Republic has declined to comment on claims made regarding crowd management at Friday night's event, headlined by Gallagher, which also featured acts such as Richard Ashcroft, Wolf Alice and Loyle Carner.
On Twitter, UK Music CEO Michael Dugher described the scenes as "the worst crowd management I have ever witnessed at a gig or any event".
The worst crowd management I have ever witnessed at a gig or any event #FinsburyPark tonight. Fences being trampled down by heaving crowds, forced out of bottleneck emergency exits. At one point it looked really dangerous. Stewards, security and police totally lost control.— Michael Dugher (@MichaelDugher) June 29, 2018