I see that this issue has been resolved, but I’ve had a similar problem with AutoCad for students. And firstly, I’ve been advised to deleted and reinstall the program. Everything has been good at first but then the system has got failed. I have been too busy at that time, hard study process and also a lot of work in Paperial, it is a college paper writing service, where I should deliver a lot of materials such high quality essay, paper works for students, and as a result, I’ve forgotten about this program for some period of time. After several weeks I’ve tried to install it again and everything has been working in a proper way. It seems to me that there is some problem with installation because of software or maybe with some updates which are not compatible with each other. In any case, I think it would be the right decision to resolve this problem by contacting the support team if you need it immediately. But my familiar programmer says that the first right step is to reload your device, then check all plugins on compatibility, check all passwords if it necessary, and of course, read the installation guide properly. If those all steps do not work, then you should write to support. Because usually, the problem is easy to resolve.