My wiki is in http://www.hanfumap.com/wiki/ After a recent update, I can't create image thumbnails. I can still upload the image to the wiki, but the image can't be used in articles. It is not displayed in the File page either. e.g. http://www.hanfumap.com/wiki/File:Hfcw.jpg I have tried to ssh to it and run convert manually That works well. Can anyone help me to diagnose? PS. I have set that only User name begins with something not alphanumerical can be registered. You might also use this account: Name: Testacc Password: fortestingpurpose