When trying to manually remove a user from the mailing list I choose [Search Users], then enter a username, then click "remove," and I get this:
Server Error
Unknown input type in XenForo_Input::XenForo_Input::_doClean
XenForo_Input::_doClean() in XenForo/Input.php at line 212
XenForo_Input->filterSingle() in XenForo/Input.php at line 411
XenForo_Input->filter() in DBTech/Mail/Application/Core.php at line 1602
DBTech_Mail_Application_Core->filter() in DBTech/Mail/ActionAdmin/Mailinglist.php at line 556
DBTech_Mail_ActionAdmin_Mailinglist->actionToggleSubscription() in DBTech/Mail/Application/Core.php at line 333
DBTech_Mail_Application_Core->runAction() in DBTech/Mail/XenForo/ControllerAdmin/Mail.php at line 32
DBTech_Mail_XenForo_ControllerAdmin_Mail->actionIndex() in XenForo/FrontController.php at line 351
XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 134
XenForo_FrontController->run() in /home/nginx/domains/thehighroad.org/public/admin.php at line 13
Server Error
Unknown input type in XenForo_Input::XenForo_Input::_doClean
XenForo_Input::_doClean() in XenForo/Input.php at line 212
XenForo_Input->filterSingle() in XenForo/Input.php at line 411
XenForo_Input->filter() in DBTech/Mail/Application/Core.php at line 1602
DBTech_Mail_Application_Core->filter() in DBTech/Mail/ActionAdmin/Mailinglist.php at line 556
DBTech_Mail_ActionAdmin_Mailinglist->actionToggleSubscription() in DBTech/Mail/Application/Core.php at line 333
DBTech_Mail_Application_Core->runAction() in DBTech/Mail/XenForo/ControllerAdmin/Mail.php at line 32
DBTech_Mail_XenForo_ControllerAdmin_Mail->actionIndex() in XenForo/FrontController.php at line 351
XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 134
XenForo_FrontController->run() in /home/nginx/domains/thehighroad.org/public/admin.php at line 13