Problem with Import Demo

Hello,

I just installed ocean WP and tried to install a demo site. Importation works properly but it displays all in one block, no header…

I followed the instructions from Abhishek given in another post on the subject :
“If you facing the formatting issue, or your page appearing broken upon installation.
I would suggest you do a WordPress Reset if the website is new and without any of your content.
Once you install all plugins, roll back the Elementor version via Elementor > Tools > Version Control, and roll back to 2.9.13.

Afterward, import the demo and there should be no problems at all.
Once done, you can update Elementor to 2.9.14.”

But I still have the same problem…
I also tried to import manually but same again!

Another post suggest to verify the system info :
“Make sure that you are using PHP version 7 and above, that your WordPress Memory Limit is set to 512M or above, and that your Upload Limit is set to 20MB or above.
Also, make sure that GD Installed and ZIP Installed are both to YES.
If any of these parameters do not match, please contact your hosting provider and ask them to help you with the setup mentioned above.
and try importing again.”

I have everything coorect but the memory limit which is only 256M. Can it really be the issue?… seems weird to me.

Anyone have the same issue or have an idea what i could try?
Thanks!