Account Credentials web form gives error

[niccolox]

when using the web form to add username / password I get the following error.

NOTE: I do not get this error when I use the command line login.

1 exception(s):
Exception #0 (Exception): Warning: Illegal string offset 'id' in /opt/section/magento-metrics/Helper/Data.php on line 366

Exception #0 (Exception): Warning: Illegal string offset 'id' in /opt/section/magento-metrics/Helper/Data.php on line 366
#0 /opt/section/magento-metrics/Helper/Data.php(366): Magento\Framework\App\ErrorHandler->handler(2, 'Illegal string ...', '/opt/section/ma...', 366, Array)
#1 /opt/section/magento-metrics/Controller/Adminhtml/Report/FetchInfo.php(37): Sectionio\Metrics\Helper\Data->refreshApplications(Object(Magento\Framework\Message\Manager))
#2 /var/www/html/vendor/magento/framework/App/Action/Action.php(107): Sectionio\Metrics\Controller\Adminhtml\Report\FetchInfo->execute()
#3 /var/www/html/vendor/magento/module-backend/App/AbstractAction.php(229): Magento\Framework\App\Action\Action->dispatch(Object(Magento\Framework\App\Request\Http))
#4 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Backend\App\AbstractAction->dispatch(Object(Magento\Framework\App\Request\Http))
#5 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(138): Sectionio\Metrics\Controller\Adminhtml\Report\FetchInfo\Interceptor->___callParent('dispatch', Array)
#6 /var/www/html/vendor/magento/module-backend/App/Action/Plugin/Authentication.php(143): Sectionio\Metrics\Controller\Adminhtml\Report\FetchInfo\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Request\Http))
#7 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(135): Magento\Backend\App\Action\Plugin\Authentication->aroundDispatch(Object(Sectionio\Metrics\Controller\Adminhtml\Report\FetchInfo\Interceptor), Object(Closure), Object(Magento\Framework\App\Request\Http))
#8 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(153): Sectionio\Metrics\Controller\Adminhtml\Report\FetchInfo\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Request\Http))
#9 /var/www/html/generated/code/Sectionio/Metrics/Controller/Adminhtml/Report/FetchInfo/Interceptor.php(26): Sectionio\Metrics\Controller\Adminhtml\Report\FetchInfo\Interceptor->___callPlugins('dispatch', Array, NULL)
#10 /var/www/html/vendor/magento/framework/App/FrontController.php(55): Sectionio\Metrics\Controller\Adminhtml\Report\FetchInfo\Interceptor->dispatch(Object(Magento\Framework\App\Request\Http))
#11 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\App\FrontController->dispatch(Object(Magento\Framework\App\Request\Http))
#12 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\App\FrontController\Interceptor->___callParent('dispatch', Array)
#13 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Request\Http))
#14 /var/www/html/generated/code/Magento/Framework/App/FrontController/Interceptor.php(26): Magento\Framework\App\FrontController\Interceptor->___callPlugins('dispatch', Array, Array)
#15 /var/www/html/vendor/magento/framework/App/Http.php(135): Magento\Framework\App\FrontController\Interceptor->dispatch(Object(Magento\Framework\App\Request\Http))
#16 /var/www/html/vendor/magento/framework/App/Bootstrap.php(256): Magento\Framework\App\Http->launch()
#17 /var/www/html/index.php(39): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http\Interceptor))
#18 {main}