I have a problem with Porto and I haven't found a solution yet

I have a problem with Porto and I haven’t found a solution yet
I was dealing with Freelancer and he made a website for me a store
And bring me the Porto Shield theme
And now the programmer left me and went and I don’t know the source of the theme
Currently, I do not have a permission code for the theme
I worked on the site and uploaded pictures and writing products
Today I bought the same Porto theme
I did not upload it
I don’t know how to act
Do you delete the old theme
And if I delete the old theme, I will lose everything I worked for
I need an expert person to help me make the site work well


Contact with your purchase item author hope they will helped!