I have been using the table plug in and it has been working great. Just recently some of my tables haven’t been viewing correctly, they are correct in the editor but when displayed on the actual page it is viewed in 1 column instead of eg 4 column format.
It seems like now Standard Responsive Mode is enabled in your table. Please try to change the settings into other type of Responsive mode. You can do it on the Settings tab (please check the screenshot http://prntscr.com/adso1s). If you still have problems with it just let me know.