plugin fails to activate

Uh oh!

Warning: include_once(template-tags.php) [function.include-once]: failed to open stream: No such file or directory in /home/.........../wp-content/plugins/events-and-bookings/events-and-bookings.php on line 2144

Warning: include_once() [function.include]: Failed opening 'template-tags.php' for inclusion (include_path='.:/usr/local/lib/php:/usr/local/php5/lib/pear') in /home/............/wp-content/plugins/events-and-bookings/events-and-bookings.php on line 2144

Warning: require_once(/home/............/wp-content/plugins/events-and-bookings/lib/class_eab_options.php) [function.require-once]: failed to open stream: No such file or directory in /home/................/wp-content/plugins/events-and-bookings/events-and-bookings.php on line 2148

Fatal error: require_once() [function.require]: Failed opening required '/home/.............../wp-content/plugins/events-and-bookings/lib/class_eab_options.php' (include_path='.:/usr/local/lib/php:/usr/local/php5/lib/pear') in /home/.........../wp-content/plugins/events-and-bookings/events-and-bookings.php on line 2148