Atty.Good day.I was a worker there in Dubai...

Although your question is not clear, here is the following information:
If you have legally terminated your employment contract in Dubai, you can return to work in the UAE.
And if you have terminated your work illegally, then a ban has certainly been imposed against you if the employer has filed a complaint against you.
In that case, you can apply for clemency to the party that requested the imposition of a ban against you in order to cancel the ban decision.
Finally,,,
If your inquiry is related to something else, please clarify, so that we can respond in a legally correct manner.