Q: I haven't been able to access to icloud.com for the last couple of days

It has been at least two days that when I try to access to icloud.com from my laptop I get the following message: "Connection Error, Icloud encountered an error while trying to connect to the server". Also, some of my calendar events are not synchronizing properly on my iphone or ipad.

Is this a general problem? can I do something to fix that?