I cannot open files to print them. I can view them online if I select to do so, but then when I go to print them or download into PDF it tells me "There is a problem with this website's security certificate."

This has been happening for two days. Usually I can click on the attachment icon, the yellow pop up at the bottom asks me to save or open the download and then I can either view, save or print the document. But this is just asking me whether I want to view all content, to which I answer yes, and nothing happens.

Please advise what needs to be done,

Thanks.