After installing this plugin many functions of wordpress won't work any more.
Some day several functions of my e-commerce package didn't work anymore and uploading media didn't work as well, After we discover some more problems on other of our websites we realised that this started after installing inpost-gallery.
So we deactivate the plugin and problems where gone.
We tryed to upgrade the plugin but this failed, so we decided to remove the plugin but we can't remove it anymore.
So the only thing we do is deactivate this buggy thing