Αfter upgrading the 7030 , the license have been lost.Ιs there any way to recover the license ?

Here is a possibility:

https://www.rocom-nimanssupport.co....15003%20Re%20flashing%20the%20OS7030.pdf

Of course your best option is to contact Samsung Technical Support in your area of the world.

If you did a back up you can open OSDM and read it there or if you restore your programming from the back up it should put the license key back in.