TwitterBar Fatal Error with PageLines Platform Theme

Platform version 1.4.3

I receive the following error when I enter my Twitter username in the Twitter Integration section on the main PageLines Platform settings page:
Fatal error: Cannot use string offset as an array in /home/taoorgan/public_html/wp-content/themes/platform/sections/section.twitterbar.php on line 79

I’m not sure what’s caused this error. I’ve tried updating plugins, disabling plugins one by one to see if one of them has caused the error…

Any help would be greatly appreciated. 🙂