How to install an older version of imagick or imagemagick?
Incorrect imagick working in php. When you run any script associated with the module, imagick, on the website displayed an empty small transparent square, and the html part is loaded(ie not displayed the site title, etc.).
On one of the forums saw what solved the problem installing the old version. But it is not specified what exactly you reinstall(imagick or imagemagick) and how.