Error log Code: An exception occurred: Please enter an ID using only a-z, A-Z, 0-9, and _ characters. in /home/xxxx/public_html/library/XenForo/DataWriter.php on line 1345 XenForo_DataWriter->_haveErrorsPreventSave() in XenForo/DataWriter.php at line 1387 XenForo_DataWriter->save() in Brivium/AdminStyleSystem/Model/AdminTemplateModification.php at line 63 Brivium_AdminStyleSystem_Model_AdminTemplateModification->importBriviumAdminTemplateModefication() in Brivium/AdminStyleSystem/Deferred/RebuildAllAdminTemplate.php at line 30 Brivium_AdminStyleSystem_Deferred_RebuildAllAdminTemplate->execute() in XenForo/Deferred/Atomic.php at line 66 XenForo_Deferred_Atomic->execute() in XenForo/Model/Deferred.php at line 294 XenForo_Model_Deferred->runDeferred() in XenForo/Model/Deferred.php at line 428 XenForo_Model_Deferred->_runInternal() in XenForo/Model/Deferred.php at line 373 XenForo_Model_Deferred->run() in XenForo/ViewRenderer/Abstract.php at line 352 XenForo_ViewRenderer_Abstract::hasManualDeferredToRun() in XenForo/ViewRenderer/HtmlAdmin.php at line 130 XenForo_ViewRenderer_HtmlAdmin->renderContainer() in XenForo/FrontController.php at line 618 XenForo_FrontController->renderView() in XenForo/FrontController.php at line 158 XenForo_FrontController->run() in /home/xxx/public_html/admin.php at line 13
I'd like to recommend you to upload to the latest version of Admin style and check it again. Regards,