I hope you are well today and thank you for your question.
From your shared screenshot it seems that you are uploading the theme as a plugin therefore it generates an error.
Please update the theme as described below.
This can be due to plugin conflict on your site so please try temporarily deactivating all plugins except Unyson, Redux framework, and WpBakery page builder plugins and see whether everything works fine and then enable the plugins one by one to see which plugin is conflicting if any.
Alternatively, you can try deactivating the Footer Parallax option in the theme settings as shown in the attached screenshot.
I managed to remove the line displaying css however when you scroll down the back up to the top the sticky header overlaps the first half of the header and there is a gap of white space above the header.
See screenshot attached.
I visited the news page but didn’t see any issue on it after scrolling the page.
Please test it without logging into your website.
The sticky header is deactivated on the news page.
Have you deactivated the sticky header on the news page?
Is this the issue that you are referring to?
Sure, I will.
If this is ok then could you please temporarily create an admin user account and share the account login details privately by adding them in the box having text “Enter your private content here (only you and forum moderators will be able to see it)”?