I've seen this pop up on two different computers. The first was right after 5.45 was released and I updated it on a domain-joined computer. I ended up re-installing 5.44 to get rid of that message.
The second was on my sister-in-law's mother's laptop. I cleaned off some malware and installed CCleaner on this computer that hasn't been turned on in around 2 years. I was able to use Ccleaner on my home wi-fi for 2 days without issues. The location error popped up after I left my house this morning, planning to return the laptop to my sister-in-law this evening.. Does Ccleaner now require an active internet connection? I haven't had a chance to test it with a different internet connection since I left my house this morning.
Both computers were connected to United States internet providers.