[v1.6.4] Fatal Error

Hey Stefan,

When updating to the new version (1.6.4) I get this error:

Parse error: syntax error, unexpected '[' in /home/nginx/domains/website.com/public/wp-content/plugins/responsify-wp/includes/content_filter.php on line 113

The same happens if I try to do a clean install: https://files.ishr.co/2014/12/img.jpg

Do you know how can I fix this problem?

Thanks,
Celso

https://www.ads-software.com/plugins/responsify-wp/