Octopus Cosy Tariff not found

Hi,

I’m on the Octopus Cosy tariff, and recently I’ve started to see:

Unknown tariff - Electricity - E-1R-COSY-22-12-08-M

The tariff “E-1R-COSY-22-12-08-M” associated with your Electricity meter has not been found. Click on ‘Learn More’ with instructions on what to do next.

Error - 24/05/2023

Would anyone be able to offer a solution?

Thanks!