Fatal error: Uncaught Error: Call to undefined function Webpros\WptkWpPlugin\WpToolkit\Common\Services\base64_decode() in /home/mailster/public_html/wp-content/mu-plugins/wp-toolkit/Common/Services/ApiTokenParser.php:26 Stack trace: #0 /home/mailster/public_html/wp-content/mu-plugins/wp-toolkit/Common/Clients/HttpClientFactory.php(16): Webpros\WptkWpPlugin\WpToolkit\Common\Services\ApiTokenParser->parse('eyJ0eXAiOiJKV1Q...') #1 /home/mailster/public_html/wp-content/mu-plugins/wp-toolkit/Event/EventBootstrap.php(85): Webpros\WptkWpPlugin\WpToolkit\Common\Clients\HttpClientFactory->getClient() #2 /home/mailster/public_html/wp-content/mu-plugins/wp-toolkit/Event/EventBootstrap.php(39): Webpros\WptkWpPlugin\WpToolkit\Event\EventBootstrap::registerWordpressEvents() #3 /home/mailster/public_html/wp-content/mu-plugins/wp-toolkit/bootstrap.php(32): Webpros\WptkWpPlugin\WpToolkit\Event\EventBootstrap::init() #4 /home/mailster/public_html/wp-content/mu-plugins/wp-toolkit.php(42): require_once('/home/mailster/...') #5 /home/mailster/public_html/wp-settings.php(471): include_once('/home/mailster/...') #6 /home/mailster/public_html/wp-config.php(101): require_once('/home/mailster/...') #7 /home/mailster/public_html/wp-load.php(50): require_once('/home/mailster/...') #8 /home/mailster/public_html/wp-blog-header.php(13): require_once('/home/mailster/...') #9 /home/mailster/public_html/index.php(17): require('/home/mailster/...') #10 {main} thrown in /home/mailster/public_html/wp-content/mu-plugins/wp-toolkit/Common/Services/ApiTokenParser.php on line 26