Parse Error

We were doing a website update and then our site crashed.

We are receiving this error: Parse error: syntax error, unexpected ‘[‘ in /home/content/34/10340434/html/wp-content/plugins/portfolio-slideshow/lib/Plugin.php on line 57

Problem is, we can’t access our host because the person who originally set up the website left-and left with all of the login information. We are still trying to get that piece figured out.

Any way to resolve this error without being able to access WP Admin?