SERVER CONFIGURATION ERROR (HOSTING ISSUE)

PHP Version: 8.2.32
PHP Environment (SAPI): fpm-fcgi
Server OS: Linux host.biginjap.com 4.18.0-553.124.4.lve.el8.x86_64 #1 SMP Fri May 15 13:02:13 UTC 2026 x86_64

Root Cause: The PHP dom extension (DOMDocument) is REQUIRED by the system but is currently NOT LOADED on this server.
(Note: Even if it shows as checked in cPanel, the underlying server library is missing or failing to load)

Diagnostic Proof:
1. extension_loaded('dom') returns: FALSE
2. class_exists('DOMDocument') returns: FALSE

List of actually loaded extensions (34):
Core, date, libxml, openssl, pcre, sqlite3, zlib, bz2, calendar, ctype, curl, hash, filter, ftp, gettext, json, iconv, SPL, pcntl, random, readline, Reflection, session, standard, exif, shmop, SimpleXML, tokenizer, xml, cgi-fcgi, mysqlnd, mysqli, PDO, pdo_mysql

Action Required for Hosting Provider:
Please inspect the server configuration and install/enable the php-xml / dom extension for PHP 8.2.32. The upgrade cannot proceed without it.