Our hosting provider recently installed an SSL security certificate on our SFTP. Since then all home pages except the home page have stopped working and have a 404 error. I have tried updating th permalinks an dupdated all other links from http to https and still they are not working.

I can see the pages in the back end of WordPress but when trying to edit/update or publish them it either says ‘updating failed’ or ‘publishing failed. I can’t even add new pages or I get the same error when going to publish.

Can anyone help?

I have tried everything I can find on the internet so far on the issue or similar.

Thanks