Syntax errors cant see site or admin

Woke up this morning and my site, http://www.reducefog.info is returning numerous errors

Parse error: syntax error, unexpected ‘[‘ in /home/content/97/7810597/html/reducefog/wp-admin/index.php(1) : eval()’d code(1) : eval()’d code(1) : eval()’d code(1) : eval()’d code on line 1

Its also in the admin pages so I’m basically locked out. I don’t write my on code. I updated a plugin in the last couple of days but that’s it.

Any thoughts, ideas, suggestions would be greatly appreciated.