Permissions denied

I need help!
I just transferred a website from my subdomain to the new site via migrate guru.
On the top of the website this message is displayed and I cannot load elementor.
I tried googling this and I need to do something with FTP but I am so confused…

Warning : include_once(/homepages/40/d812259868/htdocs/clickandbuilds/hormonalhealth/wp-includes/header.php): Failed to open stream: Permission denied in /homepages/40/d812259868/htdocs/clickandbuilds/hormonalhealth/wp-config.php on line 107

Warning : include_once(): Failed opening ‘/homepages/40/d812259868/htdocs/clickandbuilds/hormonalhealth/wp-includes/header.php’ for inclusion (include_path=’.:/usr/lib/php8.0’) in /homepages/40/d812259868/htdocs/clickandbuilds/hormonalhealth/wp-config.php on line 107

Anyone know someone I can hire to fix this issue?
I’m pretty desperate!

Send me an email I can try to help you troubleshoot.