Ccleaner browser works normally unless Anti-Phishing is enabled, which stops any display from common sites like Facebook.
Kindly fix Anti-Phishing so it works with whatever changed recently on my Windows 10 Computer.
Using Adguard.
All looks fine from here (Windows 10 1909 release on Facebook with Anti-phishing and CCleaner Browser's AdBlock enabled - seeing Facebook as I would normally expect). Could you describe in greater detail what is happening? Which version of Windows 10 you are using? Are you using any additional Chromium extensions into CCleaner Browser? What do you see when on https://www.facebook.com? Which settings do you have enabled in the Security and Privacy centre of CCleaner Browser: