Following the major security patch, several bugs emerged in the ARK system, version 1.1.2 is available on Sourceforge now, which deals with these.
If you are running either ARK 1.1 or ARK 1.1.1 you can use your current config in the new ARK package, and replace your current installation with the new one.
If you are running a 1.0 ARK or earlier it is strongly recommended that you update to the newest version. See How To Upgrade for details
If you require help with this please contact our team, they are always keen to hear from ARK users!