samzee

Does anybody here knows how to get rid of an error with a POS module ? , I install the module just fine, the manage section is working but after i click on sell the page goes into a blank screen spinning ball of death.  error on chrome developer console: Uncaught TypeError: Cannot read property 'style' of null at t.value (sales.js?v=1500233978:109) at Object.r (sales.js?v=1500233978:86) at a (sales.js?v=1500233978:86) at Object.s [as executeDispatchesInOrder] (sales.js?v=1500233978:86) at p (sales.js?v=1500233978:15) at g (sales.js?v=1500233978:15) at Array.forEach (<anonymous>) at n (sales.js?v=1500233978:108) at Object.processEventQueue (sales.js?v=1500233978:15) at r (sales.js?v=1500233978:126)