Hi @icahk,
Thanks for the info. I see the next error message in your Apache logs, can you check it? Did you have any issue doing the migration from your old server? How did you do it?
[Thu Jan 28 06:23:55.199078 2021] [proxy_fcgi:error] [pid 31963:tid 140431941662464] [client 13.66.139.39:5824] AH01071: Got error 'PHP message: WordPress database error Table 'bitnami_wordpress.wp_4_options' doesn't exist for query SELECT option_value FROM wp_4_options WHERE option_name = 'wp_4_user_roles' LIMIT 1 made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/themes/wanium/single.php'), get_the_title, apply_filters('the_title'), WP_Hook->apply_filters, em_wp_the_title, EM_Event->output, EM_Event->get_location, em_get_location, EM_Location->__construct, get_blog_post, switch_to_blog, do_action('switch_blog'), WP_Hook->do_action, WP_Hook->apply_filters, wp_switch_roles_and_user, WP_Roles->for_site, WP_Roles->get_roles_data, get_optionPHP message: WordPress database error Table 'bitnami_wordpress.wp_4_posts' doesn't exist for query SELECT * FROM wp_4_posts WHERE ID = 529 LIMIT 1 made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/themes/wanium/single.php'), get_the_title, apply_filters('the_title'), WP_Hook->apply_filters, em_wp_the_title, EM_Event->output, EM_Event->get_location, em_get_location, EM_Location->__construct, get_blog_post, get_post, WP_Post::get_instance'