Hi, I can confirm that your license is valid in our systems. Would you mind to check your installation with http://utils.support.tools.avast.com/tools/support/utils/avastsupport.exe ? Then please let the tool upload support package for further analyses. More details https://www.avast.com/en-us/faq.php?article=AVKB33#artTitle
It would be great if you let us know when you upload the file…