X Theme - recurring database/php error

My error logs are filled with the following (domain redacted). I am not using any of the x theme files in a child theme, nor am I using any child functions that refer to these pages.

2025/03/02 12:08:32 [error] 3438#3438: *52123 FastCGI sent in stderr: “PHP message: PHP Warning: Illegal string offset ‘base’ in /var/www/html/domain.com/public_html/wp-content/themes/x/framework/legacy/cranium/headers/setup.php on line 75PHP message: PHP Warning: Illegal string offset ‘extension’ in /var/www/html/domain.com/public_html/wp-content/themes/x/framework/legacy/cranium/headers/setup.php on line 76PHP message: PHP Warning: Illegal string offset ‘base’ in /var/www/html/domain.com/public_html/wp-content/themes/x/framework/legacy/cranium/footers/setup.php on line 70PHP message: PHP Warning: Illegal string offset ‘extension’ in /var/www/html/domain.com/public_html/wp-content/themes/x/framework/legacy/cranium/footers/setup.php on line 71PHP message: PHP Warning: Illegal string offset ‘base’ in /var/www/html/domain.com/public_html/wp-content/themes/x/framework/legacy/functions/frontend/view-routing.php on line 56” while reading response header from upstream, client: 47.238.13.17, server: domain.com, request: “GET /(path) HTTP/2.0”, upstream: “fastcgi://unix:/run/php/php7.4-fpm.sock:”, host: “domain.com”, referrer: “https://domain.com/(path)

Can someone help?