Stock by Attribute v4.0 addon for v1.3.5-1.3.9

[mc12345678]

I am having an issue that is making me pull my hair out! lol

History... upgrading a 1.5.0 cart to 1.5.4
Installed latest "combo" version of SBA from github and get an error in logs as follows when going to a product page - which is blank:

[20-Aug-2016 13:21:11 America/New_York] PHP Parse error: syntax error, unexpected '[' in /home/elkkidsc/public_html/store2/includes/classes/observers/class.products_with_attributes_stock.php on line 671

When I look at it in Dreamweaver it shows two lines as "red" indicating an error:

Typo:
is_array
Is a function, not an array. Therefore the first [ and last] should be replaced with their () equivalent.

Line should read:

 if (is_array($products[$i]['attributes'])) {