Hello,
After upgrade to joomla 3.6.3 I get the following message at the frontend:

Fatal error: Cannot redeclare JEventsBuildRoute() (previously declared in /domains/meander-bemmel.nl/public_html/components/router.php:18) in /domains/meander-bemmel.nl/public_html/components/com_jevents/router.php on line 329

Joomla 3.6.3
php 5.3.28