Plymouth Argyle manger Peter Reid has criticised his side's defending after their 2-0 loss at Barnet.
Argyle, who are the subject of a takeover bid by James Brent, are four points adrift at the bottom of League Two and have yet to win a game.
"We've got to learn to defend better than that, we can't give goals away cheaply," he told BBC Radio Devon.
"We have got to get from somewhere a belief and a will not to concede," Reid added after the defeat at Underhill.
And the Argyle boss said he was at a loss to explain the mistakes, adding: "We keep working on the training ground and we keep on making the same mistakes.
"There's a lack of confidence. Is there a lack of belief? It looks like that at the moment," he continued.
"It's driving me crackers and it must be driving the players and the supporters crackers."