Clients are able to make appointments during a scheduled break time

Today I just noticed that a client made a appointment at 8PM on January 26th. I have been and am currently scheduled for a break from 7-9. I have been using this plug in for awhile and this just happened. I went to the interface that the client sees and noticed on Thursday they could schedule for anytime during my work hours and my breaks were no longer reflected. I work 10-11, 12-1, 6-7 and 9-10 but see they could schedule anything in my working hours. Help