Tom Parkes, 25, netted his first goal for the east-london club just before the break after Donny midfielder Tommy Rowe had opened the scoring.
To add further pressure, the O’s were then hit back when John Marquis scored a brace before former Orient captain Mathieu Baudry made it four as the visitors came and went with three points leaving Orient at the bottom of League.
Orient boss admitted that mistakes were made during the 4-1 defeat to Doncaster.
Webb told BBC London Sport, “I thought we played well, it’s a shame we are not talking about any points but we made mistakes and looked shaky. We got truly punished out there.”
Orient have now conceded 13 goals in their last four League 2 games and highlights the many problems at Orient at the moment.
Despite this O’s boss Webb backed his young players and suggested with a bit more learning time they can rectify these problems, he said “We’ve got what we’ve got. I’m not afraid to play (my) players out there, because I know in a year’s time they won’t be making those mistakes.”
Orient have today faced a winding up order at High Court and Webb admitted it’s natural that the players are thinking about their futures at the club.
“It’s something we’ve all had to deal with, hopefully we can come out the positive side to it and I do understand it’s the priority to everyone within the club at this present moment.
Webb also admitted that Orient owner Francesco Becchetti has not been in contact about the situation, which has left him guessing.
“(There’s been) No communication between me and the owner, we are all left to guess which way it’s going to go and left in the lurch over what happens.
“I’ve got to lift a load of players before every game, so it’s very tough. They can only be lifted so much, it’s frustrating. I know the older players were promised so much in the summer and it hasn’t worked out that way and find themselves scrapping at the bottom of the league, but we are giving it our best shot.”
Leyton Orient are now seven points adrift of safety, but Webb is adamant his squad of players can survive in League Two.
“I think it’s possible, but realistically it’s going to be tough. There’s a lot of heart and promise in our play, but there are mistakes.
Leyton Orient are back in action when they take on who have failed to win a single game from their last six ties in league Two.