I opened Affinity Photo and a pop-up message told me I need to instal an update. I clicked the link, went to the download page, and downloaded update to version 1.8. Install began and then I was asked to close Affinity, which I did. After a short while of 'installing' the pop-up box told me install had failed. No reason, no error message. Now I can't get into my original version of Affinity Photo. I use Windows 10, latest version on a desktop PC. I get a message 'The item referred to by this shortcut cannot be accessed. You may not have the appropriate permissions.' I used the previous version without problems. Any sugestions, please?