Acabado License Keeps Deactivating

I activated the theme in Acabado Manager according to instructions, but weeks later it randomly deactivates and gives me this error:
“IMPORTANT! Your Acabado license is expired or invalid.”

Acabado licensing works by forcing your site to ping our system database periodically to validate your license.  Some hosts block these sorts of pings unless you instruct them otherwise. Try contacting your host and ask them to “allow an outgoing connection to the API.”

NOTE: If you are running v1.2.4, there is a known bug that causes the license to deactivate even though it is valid. Please follow the instruction here to manually update to v1.2.5.