Error: Eshkool - Education WordPress Theme

I bought Eshkool - Education WordPress Theme.

Due to covid situation, we were not able to start building website. Now my web developer has started building website.

He have uploaded your theme in wordpress and also import demo for the same. Now when He is trying to edit page using elementor, but it shows critical error for the same. we can attached the screen for reference.
There is no email into site admin inbox. we don’t know what to do.
Please help us asap do that we can build website.

I have sent mail to author and waiting reply. It shows me my support is expired. While I am using the theme first time. I didn’t do anything due to COVID, this looks to me very bad.

Hi @PS_2020,

Please contact the author of your purchased theme, the theme author will assist you.

How to contact an author to get support or for any technical query:

Thanks

Hi @rs-theme could you please help your purchaser.