The company is holding my salary and asking me to pay losses, what can I do?

Good morning.

Today the company had given the salary to my colleagues, however, mine was not given.

They are holding my salary. They want me to send an email to them that I agree to pay the loss of the company.

They are not mentioning how much it is, but I know that this is illegal, holding the salary of a worker.

What is the best thing I will do?

Please advise.

Thank you.