iCloud icon on the Safari browser

I have macOS Catalina 10.15.2 on my iMac. I see the problematic iCloud icon on my Safari browser. After I reinstall macOS Catalina, this problematic iCloud icon still exists. I have Malwarebytes installed on my iMac and it doesn't find any problems. There are problematic podcast streamings on the globally well-known BBC programs on my iMac too. I have concerns with my iMac security. Are there any serious security flaws on my iMac?