The program is experiencing some  "latency" issues and they are working on it. 

I would consider exiting the program and then re entering to see if the experience improves. There is a phone number to call https://proconnect.intuit.com/community/taxation/help/how-to-contact-lacerte-for-help/00/4691 but hold times are horrendous. 

Work on some other returns and if you experience any similar problems, consider using the Tool Hub. https://proconnect.intuit.com/community/help-articles/help/exception-occurred-in-the-tax-engine-erro...