И серверный лог тоже?
Apr 5 18:24:26 vh342 apache_error[62912]: vse-razbori.ru [Tue Apr 05 18:24:26 2022] [error] [pid 54576] sapi_apache2.c(362): [client 2.60.76.216:43328] PHP Fatal error: Uncaught Error: Call to undefined method SimpleXMLElement::__set_state() in /home/c/ct56934/public_html/core/cache/registry/mgr/workspace/package/install/msimportexport-1.4.21-beta/1649171986-000008.msg.php:6\nStack trace:\n#0 /home/c/ct56934/public_html/core/model/modx/registry/modfileregister.class.php(197): include()\n#1 /home/c/ct56934/public_html/core/model/modx/registry/modfileregister.class.php(130): modFileRegister->_readMessage('/home/c/ct56934...', true)\n#2 /home/c/ct56934/public_html/core/model/modx/processors/system/console.class.php(71): modFileRegister->read(Array)\n#3 /home/c/ct56934/public_html/core/model/modx/modprocessor.class.php(185): modConsoleProcessor->process()\n#4 /home/c/ct56934/public_html/core/model/modx/modx.class.php(1770): modProcessor->run()\n#5 /home/c/ct56934/public_html/core/model/modx/modconnectorresponse.class.php(144): modX->runProcessor('system/console', Array, Array)\n#6 /home/c/ct56934/public_html/core/model/modx/modconnectorrequest.class.php(86): modConnectorResponse->output in /home/c/ct56934/public_html/core/cache/registry/mgr/workspace/package/install/msimportexport-1.4.21-beta/1649171986-000008.msg.php on line 6