The problem with the license of eSoftscript, but had closed this business.

Hello
I'm back in this forum after a long time.
I'm facing a problem with my paid script.
I bought eSoftscript for my website downloadsun.com
After a long time I tried to log in to my admin panel,
I found that your license is not valid.
when i opened the esoftscript forum for hlep.
I saw that he had closed the business.
If there is an ESS pro user, can you help me with the solution?
Finally I deleted my script from my website.
Can someone tell me the ESS pro solution?