My cloud Device access problem

For several days I have had a problem logging in remotely to my My Cloud device. It does not work when I try to log in via the website (offline device message) and via the application from the phone.
I remember that last year at this time there was a similar problem. Then there was a problem with certification on the WD side

Hi @Danowa please refer to this KBA article as remote access to a My Cloud device showing “Device Offline” error message: Remote Access - Device Offline or Cannot Connect to My Cloud