PHP Errors when Initially Linking Account

I’m just getting this set up, and when I linked the account in the plugin’s settings, I received the following errors:

Warning: Illegal string offset ‘response’ in /home/*******/public_html/staging.*******.com/wp-content/plugins/zopim-live-chat/includes/class-login.php on line 42

Warning: Illegal string offset ‘code’ in /home/*******/public_html/staging.*******.com/wp-content/plugins/zopim-live-chat/includes/class-login.php on line 42