Error code with Appointment +, I keep receiving Uncaught TypeError: Object [object Object] has no me

Uncaught TypeError: Object [object Object] has no method 'tablesorter'

That is the error code I receive. I cannot see the appointment times, and as per the FAQ section, I deactivated all plugins, switch to the default theme, and still once I activated the appointment + plugin, I got that error.

Maybe I am not doing something in the settings correctly...not sure.