Is it permissible to take the salary that continued to be deposited into the account after the contract was canceled, even though no work was performed?

It is permissible to receive the salary if the contract was terminated by them and not due to any refusal or negligence on your part in the work. The contract of hire (ijara) is binding, and the hired person (ajir) is entitled to the wage as long as he is ready to work. It is stated in "Al-Muqni'": "The ijara is a binding contract from both parties. Neither of them has the right to unilaterally terminate it, and even if it becomes apparent to them before the expiration of the term, the wage is due upon them." And in "Al-Sharh Al-Kabir": "If the hirer terminates the ijara before the expiration of its term and voluntarily abandons the utilization, the ijara does not become void, and the wage is binding upon him." You should contact the education administration to renew the contract.