Fatal error: Uncaught Error: Call to a member function is() on boolean in /var/customers/webs/Megastore/production/releases/build_20180620110132/htdocs/app/code/local/Cm/RedisSession/Model/Session.php:178
Stack trace:
#0 /var/customers/webs/Megastore/production/releases/build_20180620110132/htdocs/app/code/local/Cm/RedisSession/Model/Session.php(124): Cm_RedisSession_Model_Session->handleException(Object(Cm\RedisSession\ConcurrentConnectionsExceededException))
#1 [internal function]: Cm_RedisSession_Model_Session->read('47b650f1bc7c41b...')
#2 /var/customers/webs/Megastore/production/releases/build_20180620110132/htdocs/app/code/core/Mage/Core/Model/Session/Abstract/Varien.php(138): session_start()
#3 /var/customers/webs/Megastore/production/releases/build_20180620110132/htdocs/app/code/core/Mage/Core/Model/Session/Abstract/Varien.php(232): Mage_Core_Model_Session_Abstract_Varien->start('frontend')
#4 /var/customers/webs/Megastore/production/releases/build_20180620110132/htdocs/app/code/core/Mage/Core/Model/Session/Abstra in /var/customers/webs/Megastore/production/releases/build_20180620110132/htdocs/app/code/local/Cm/RedisSession/Model/Session.php on line 178