Since you've updated the app this weekend, my husband has been utterly unable to use it to book his tele-appointment with his dr for his RX. WEVE re-installed the app several times and are unable to even get a login screen. It flashes the name of the app and then stays on an utterly blank white page. The Dr. only books thru this app & it DOES NOT work. Is there a patch or update to fix this???