Call-time pass-by-reference has been deprecated (genesis theme framework)

I'm getting the following when activating the classified plugin:
http://belltown.seattlesavvy.com/

Warning: Call-time pass-by-reference has been deprecated in /home/babytooth/seattlesavvy.com/wp-content/plugins/connections/includes/class.terms.php on line 290

Warning: Call-time pass-by-reference has been deprecated in /home/babytooth/seattlesavvy.com/wp-content/plugins/connections/includes/class.terms.php on line 364

Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of sanitize_title(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /home/babytooth/seattlesavvy.com/wp-content/plugins/connections/includes/class.terms.php on line 479

Warning: Call-time pass-by-reference has been deprecated in /home/babytooth/seattlesavvy.com/wp-content/plugins/connections/includes/inc.shortcodes.php on line 89

Warning: Call-time pass-by-reference has been deprecated in /home/babytooth/seattlesavvy.com/wp-content/plugins/connections/includes/inc.shortcodes.php on line 90

Warning: Call-time pass-by-reference has been deprecated in /home/babytooth/seattlesavvy.com/wp-content/plugins/connections/includes/inc.shortcodes.php on line 91

Warning: Call-time pass-by-reference has been deprecated in /home/babytooth/seattlesavvy.com/wp-content/plugins/connections/includes/inc.shortcodes.php on line 92

Warning: Call-time pass-by-reference has been deprecated in /home/babytooth/seattlesavvy.com/wp-content/plugins/connections/includes/inc.shortcodes.php on line 93

Warning: Call-time pass-by-reference has been deprecated in /home/babytooth/seattlesavvy.com/wp-content/plugins/connections/includes/inc.shortcodes.php on line 94

Warning: Call-time pass-by-reference has been deprecated in /home/babytooth/seattlesavvy.com/wp-content/plugins/genesis-connect/lib/class.theme.php on line 35

Warning: Call-time pass-by-reference has been deprecated in /home/babytooth/seattlesavvy.com/wp-content/plugins/genesis-connect/lib/class.theme.php on line 38

Warning: Call-time pass-by-reference has been deprecated in /home/babytooth/seattlesavvy.com/wp-content/plugins/genesis-connect/lib/class.theme.php on line 43