Unexpected error, check log for details
Error: Call to undefined method OPNsense\Base\Constraints\NgxBusyBufferConstraint::isEmpty() in /usr/local/opnsense/mvc/app/models/OPNsense/Base/Constraints/NgxBusyBufferConstraint.php:46Stack trace:#0 /usr/local/opnsense/mvc/app/models/OPNsense/Base/Validation.php(83): OPNsense\Base\Constraints\NgxBusyBufferConstraint->validate(Object(OPNsense\Base\Validation), 'location.661a48...')#1 /usr/local/opnsense/mvc/app/models/OPNsense/Base/BaseModel.php(517): OPNsense\Base\Validation->validate(Array)#2 /usr/local/opnsense/mvc/app/controllers/OPNsense/Base/ApiMutableModelControllerBase.php(260): OPNsense\Base\BaseModel->performValidation(false)#3 /usr/local/opnsense/mvc/app/controllers/OPNsense/Base/ApiMutableModelControllerBase.php(466): OPNsense\Base\ApiMutableModelControllerBase->validate(Object(OPNsense\Base\FieldTypes\ContainerField), 'location')#4 /usr/local/opnsense/mvc/app/controllers/OPNsense/Nginx/Api/SettingsController.php(192): OPNsense\Base\ApiMutableModelControllerBase->addBase('location', 'location')#5 /usr/local/opnsense/mvc/app/library/OPNsense/Mvc/Dispatcher.php(165): OPNsense\Nginx\Api\SettingsController->addlocationAction()#6 /usr/local/opnsense/mvc/app/library/OPNsense/Mvc/Router.php(156): OPNsense\Mvc\Dispatcher->dispatch(Object(OPNsense\Mvc\Request), Object(OPNsense\Mvc\Response), Object(OPNsense\Mvc\Session))#7 /usr/local/opnsense/mvc/app/library/OPNsense/Mvc/Router.php(139): OPNsense\Mvc\Router->performRequest(Object(OPNsense\Mvc\Dispatcher))#8 /usr/local/opnsense/www/api.php(36): OPNsense\Mvc\Router->routeRequest('/api/nginx/sett...', Array)#9 {main}
I did find a post on the github project / issues that provides a patch for that and another one for nginx logs that show permission denied on write
opnsense-patch -c plugins 1e23572