First of all, according to what you said, your company didn't give you professional technical training, so the agreement is invalid.

And even if the agreement is valid, the company does not provide special training fees, so it has no right to ask you to pay liquidated damages. The Labor Contract Law stipulates that if a worker violates the service period agreement, he shall pay liquidated damages to the employer in accordance with the agreement. The amount of liquidated damages shall not exceed the training expenses provided by the employer. The liquidated damages that the employer requires the laborer to pay shall not exceed the training expenses that should be shared for the unfinished part of the service period.