Undefined index: Clear in piwik/core/Translate.php on line 173 (no replies)

Hi,

I'm receiving the error below since updating Piwik to the latest version. Can anyone provide insight?

Notice: Undefined index: Clear in /home/radvon/radvon.com/piwik/core/Translate.php on line 173

Backtrace -->

#0 Piwik\Error::errorHandler(...) called at [/home/radvon/radvon.com/piwik/core/Translate.php:173]
#1 Piwik\Translate::getJavascriptTranslations(...) called at [/home/radvon/radvon.com/piwik/core/AssetManager.php:121]
#2 Piwik\AssetManager->getJsInclusionDirective(...) called at [/home/radvon/radvon.com/piwik/core/Twig.php:127]
#3 Piwik\{closure}(...) called at [:]
#4 call_user_func_array(...) called at [/home/radvon/radvon.com/piwik/tmp/templates_c/2b/e9/e65168f6078745b6424fbe04b49edd52033a24d319d64fdaf5ff441b7b88.php:24]
#5 __TwigTemplate_2be9e65168f6078745b6424fbe04b49edd52033a24d319d64fdaf5ff441b7b88->doDisplay(...) called at [/home/radvon/radvon.com/piwik/vendor/twig/twig/lib/Twig/Template.php:278]
#6 Twig_Template->displayWithErrorHandling(...) called at [/home/radvon/radvon.com/piwik/vendor/twig/twig/lib/Twig/Template.php:252]
#7 Twig_Template->display(...) called at [/home/radvon/radvon.com/piwik/tmp/templates_c/1b/f8/e5233e249fe1812c9024e83dcfb9e237c28c65b6cbc1f4aac38911c16035.php:121]
#8 __TwigTemplate_1bf8e5233e249fe1812c9024e83dcfb9e237c28c65b6cbc1f4aac38911c16035->block_head(...) called at [/home/radvon/radvon.com/piwik/vendor/twig/twig/lib/Twig/Template.php:144]
#9 Twig_Template->displayBlock(...) called at [/home/radvon/radvon.com/piwik/tmp/templates_c/1b/f8/e5233e249fe1812c9024e83dcfb9e237c28c65b6cbc1f4aac38911c16035.php:30]
#10 __TwigTemplate_1bf8e5233e249fe1812c9024e83dcfb9e237c28c65b6cbc1f4aac38911c16035->doDisplay(...) called at [/home/radvon/radvon.com/piwik/vendor/twig/twig/lib/Twig/Template.php:278]
#11 Twig_Template->displayWithErrorHandling(...) called at [/home/radvon/radvon.com/piwik/vendor/twig/twig/lib/Twig/Template.php:252]
#12 Twig_Template->display(...) called at [/home/radvon/radvon.com/piwik/tmp/templates_c/c9/f2/d8591b23cfe1ac0a24137944bbb85543f3406fc2aa7b5ff871e8f925d351.php:25]
#13 __TwigTemplate_c9f2d8591b23cfe1ac0a24137944bbb85543f3406fc2aa7b5ff871e8f925d351->doDisplay(...) called at [/home/radvon/radvon.com/piwik/vendor/twig/twig/lib/Twig/Template.php:278]
#14 Twig_Template->displayWithErrorHandling(...) called at [/home/radvon/radvon.com/piwik/vendor/twig/twig/lib/Twig/Template.php:252]
#15 Twig_Template->display(...) called at [/home/radvon/radvon.com/piwik/vendor/twig/twig/lib/Twig/Template.php:263]
#16 Twig_Template->render(...) called at [/home/radvon/radvon.com/piwik/vendor/twig/twig/lib/Twig/Environment.php:292]
#17 Twig_Environment->render(...) called at [/home/radvon/radvon.com/piwik/core/View.php:256]
#18 Piwik\View->renderTwigTemplate(...) called at [/home/radvon/radvon.com/piwik/core/View.php:251]
#19 Piwik\View->render(...) called at [/home/radvon/radvon.com/piwik/plugins/CoreHome/Controller.php:169]
#20 Piwik\Plugins\CoreHome\Controller->index(...) called at [:]
#21 call_user_func_array(...) called at [/home/radvon/radvon.com/piwik/core/FrontController.php:577]
#22 Piwik\FrontController->doDispatch(...) called at [/home/radvon/radvon.com/piwik/core/FrontController.php:86]
#23 Piwik\FrontController->dispatch(...) called at [/home/radvon/radvon.com/piwik/core/dispatch.php:34]
#24 require_once(...) called at [/home/radvon/radvon.com/piwik/index.php:47]