Try updating to the latest version (1.1.1). If the problem remains then please check the log file with the appropriate date under “%programdata%\Tobii\Tobii InfiniteScreen\Logs”. Create an support issue and attach that file or just copy/paste that entire last error message (not the whole file!!) in a reply here.
FYI: This error most likely confined to the ISE-application so there is absolutely no need to uninstall the entire Tobii EyeX software stack or anything else for that matter.
One possible cause could be corrupted setting files. Try removing all files and folders under “%localappdata%\Tobii\Tobii InfiniteScreen” (NOTE: this will remove any setting you’ve made in ISE!).