This is the answer I have received from the hoster’s support (Host Gator):
Thanks for the patience. I have tried accessing WordPress dashboard and its working fine without any errors on my end.You can click on EDIT SITE for the domain at https://www.hostgator.com/my-account/hosting/details
So basically, everything is ok on their end,
Sorry this didn’t help at all
