I am having a problem after update too. I can not activate download manager (free), Site was working fine for he past year. Site was down and I couldn’t login to WP until hosting service disabled all plugins. I was able to individually reactivate plugins one at a time to test them except for WPDM.
I get the following fatal error when trying to activate WPDM
Parse error: syntax error, unexpected T_STRING in /home/content/62/9843662/html/wp/wp-content/plugins/download-manager/download-manager.php on line 12
I am running WP 4.4.2, using theme Twenty Fourteen