If you get this error when you connect to the ASL gui, this means that you have not configured ASL to use the same SSL certificate you use for your website, and your have configured your website to prevent your browser from connecting to that hostname if the SSL certificate does not exactly match the same certificate your website uses.
1) Change your ASL gui certificate to match your websites certificate. See the link below for guidance:
2) Connect to the systems IP address
3) (not recommended) Disable HSTS for your website
Clearing this from your browser: http://classically.me/blogs/how-clear-hsts-settings-major-browsers