PHP Core Warning – yii\base\ErrorException

$_SERVER = [
    'LSPHP_ProcessGroup' => 'on',
    'PATH' => '/usr/local/bin:/bin:/usr/bin',
    'HTTP_ACCEPT' => 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
    'HTTP_ACCEPT_ENCODING' => 'br',
    'HTTP_ACCEPT_LANGUAGE' => 'en-US,en;q=0.5',
    'HTTP_HOST' => 'www.model-test.com',
    'HTTP_USER_AGENT' => 'CCBot/2.0 (https://commoncrawl.org/faq/)',
    'HTTP_X_FORWARDED_FOR' => '35.175.191.46',
    'HTTP_X_FORWARDED_PROTO' => 'https',
    'HTTP_X_REAL_IP' => '35.175.191.46',
    'HTTP_X_REAL_PORT' => '33762',
    'HTTP_X_FORWARDED_PORT' => '443',
    'HTTP_X_PORT' => '443',
    'DOCUMENT_ROOT' => '/home/u491351654/domains/model-test.com/public_html',
    'REMOTE_ADDR' => '35.175.191.46',
    'REMOTE_PORT' => '59942',
    'SERVER_ADDR' => '2a02:4780:1:500:0:1d49:6e66:5',
    'SERVER_NAME' => 'www.model-test.com',
    'SERVER_ADMIN' => '',
    'SERVER_PORT' => '443',
    'REQUEST_SCHEME' => 'https',
    'REQUEST_URI' => '/examcentre/index',
    'REDIRECT_URL' => '/frontend/web/examcentre/index',
    'REDIRECT_REQUEST_METHOD' => 'GET',
    'PROXY_REMOTE_ADDR' => '2a02:4780:1:18::2',
    'HTTPS' => 'on',
    'CRAWLER_USLEEP' => '1000',
    'CRAWLER_LOAD_LIMIT_ENFORCE' => '25',
    'REDIRECT_STATUS' => '200',
    'SSL_PROTOCOL' => 'TLSv1.3',
    'SSL_CIPHER' => 'TLS_AES_256_GCM_SHA384',
    'SSL_CIPHER_USEKEYSIZE' => '256',
    'SSL_CIPHER_ALGKEYSIZE' => '256',
    'SCRIPT_FILENAME' => '/home/u491351654/domains/model-test.com/public_html/frontend/web/index.php',
    'QUERY_STRING' => '',
    'SCRIPT_URI' => 'https://www.model-test.com/examcentre/index',
    'SCRIPT_URL' => '/examcentre/index',
    'SCRIPT_NAME' => '/frontend/web/index.php',
    'SERVER_PROTOCOL' => 'HTTP/1.1',
    'SERVER_SOFTWARE' => 'LiteSpeed',
    'REQUEST_METHOD' => 'GET',
    'X-LSCACHE' => 'on,crawler,esi,combine',
    'PHP_SELF' => '/frontend/web/index.php',
    'REQUEST_TIME_FLOAT' => 1695383768.985328,
    'REQUEST_TIME' => 1695383768,
];

$_SESSION = [
    '__flash' => [],
];

$_ENV = [
    'LSPHP_ProcessGroup' => 'on',
    'PATH' => '/usr/local/bin:/bin:/usr/bin',
];