I not get salary from October 2019, total salary...

Regard to wages, it is not permissible to reduce it with the validity of the contract and not to expire its term, given that the law provided legal protection for wages, especially since the Labor Law stipulated in Article (56) which stipulated:
Article (56):
workers appointed with annual or monthly wages, whose wages are paid at least once every month, and all other workers pay their wages once every At least two weeks. Therefore, with the possibility of a complaint in front of work and workers and the filing of a lawsuit against him, work may be left according to the text of Article (121). The worker may leave work without warning in one of the following two cases:
A- If the employer violates his obligations before the worker in the articles stipulated in the contract or the law. The law also obliges you to give you no objection to changing the work authority and canceling the visa for the purpose of transferring this guarantee from the side and from the side of canceling the visa you can not cancel except with the consent of the sponsor or whoever delegates it, since this is his right but with the presence of the violation can cancel the visa with the knowledge of the Ministry of Labor on the condition of the existence of the violation It is the failure to pay the agreed-upon wages in the contract, according to the legally specified date
B- If the employer or his representative legally assaults the worker.
Therefore, you can go to the labor office and submit a complaint in the event that the ban imposed to prevent the spread of Corona disease is lifted, and the employer can be changed without NOC from the sponsor