I had transferred my blog manually to my new hosting and all works fine. I try to update or upgrade one of my plugins and this is what the message said (example: easygravatars plugin)...
Downloading update from http://downloads.wordpress.org/plugin/easygravatars.1.3.zip
Unpacking the update
Could not copy file: ../wp-content/upgrade/easygravatars/easygravatars/easygravatars.php
This happens to all plugins aswell. Thank you for the help.