"Scan now" button permanently greyed out on Health Check screen

Since the last update the “Scan now” button is permanently greyed out on the Health Check screen. It shows as blue for a nano-second on opening but then greys out. There’s a message below saying “…busy with something else…” but that never goes away. CCleaner 7.0.1010.0. on Win 11 Home with latest updates. Any suggestions welcome!

Hi @PeteDM,
Please contact our support team via the Contact Us page on our Help Centre using the same email address you used to make your purchase. Once you have clicked Submit, please click the Start Chat button to give details to an agent so we can investigate this further.