Z Visa Denied

Hi. I hope someone can answer me what is the best way to do. my employer already applied for my working permit and process for me to get a z type. when i received the documents i applied to the embassy and got denied.

what we will do now? can we reapply for another work permit? previously, i already got a z type and go to china but my contract was cancelled by my employer. what I will do?please help. my employer is keep on finding ways that i can work again?