Director of the children and young people's service Chris Pratt said Doncaster Council "must do better to improve services".
He added: "We are using these reports as a major opportunity to up our game and are determined to rejuvenate our improvement plan to speedily put in place the changes that will provide maximum protection for all our children and young people."
More top news
A giant panda has been caught in camera breaking iron bars and moving into the other cell to have a taste of milk in the next cell.
City traders are paying up to £200 to cure their hangovers with a vitamin drip, according to a doctor from Surrey.
Serena Williams won her sixth Australian Open title with a hard fought 6-3, 7-6 (7-5) victory over Maria Sharapova in Melbourne