This is resolved. I copied using FTP the wp-content folder as well as well as wp-config.php file to a temp folder, then deleted everything, recopied all word press, copied the wp-content without the plugins sub folder and wp-confog.php. That gave me back access to the site. However the login was not working. I now login through http://www.mywebsite/wp-login.php instead of http://www.mywebsite/login ….. seems to work as well.
Thanks a lot for your advices.
Thank you for your quick answer, so I think I updated the plugins and deleted some spam comments and then tried to post something and then just blank..
I’m not sure what you mean by FTP but yes I have an access to my website by typing login at the end of the link.
And no I don’t have any backup of the site files before the problem (well I don’t think so)