ERROR. I'm almost done with the "Web Development Fundamentals" course. When I opened the SoloLearn application again to finish it, suddenly the course I took was not in my course list and returned to the course menu list. As soon as I took the course again, the progress bar returned to zero and when I tried to click it, the SoloLearn application "Force Close". Then I tried clearing the cache, the same thing happened, "Force Close". Please fix it. Thank you.