Fatal error on activation

I get this error when trying to activate the plugin:

Call-time pass-by-reference has been removed in /var/www/vhosts/[redacted]/httpdocs/wp/content/plugins/mvis-security-center/inc/mvl_gui_profile.php on line 57

Here’s the call stack:

#	Time	Memory	Function	Location
1	0.0013	386296	{main}( )	../plugins.php:0
2	0.2966	20434872	plugin_sandbox_scrape( )	../plugins.php:156
3	0.2974	20544280	include( '/var/www/vhosts/[redacted]/httpdocs/wp/content/plugins/mvis-security-center/mvl_wp.php' )	../plugins.php:154

Sounds like pass by ref was deprecated in PHP5 and removed in 5.4. I’m running 5.4.18.

http://wordpress.org/extend/plugins/mvis-security-center/