I wrote about an issue I was having with One Click SSL version 1.5, it had been updated to version 1.5 on the 26th August and my sites had automatically updated the plugin. I couldn’t log into my sites and even when I could (via the IONOS login) I couldn’t upload images or post blog posts.
The solution was to deactivate the plugin, this did not deactivate SSL, but it took a while to work out what was happening.
It looks like I wasn’t the only one having issues, as the very next day, version 1.6 was out and this resolved the issue I (and others) were having.