Hi there!
I will update the sample project this week. But it is strange. On the newest Character Generator(2.0.0), there is no 'split' method being executed on line 2600 as this error log is saying.
If you are indeed sure that you have the character generator plugin updated on the sample project, try refreshing the plugin parameters, because the newest version changes something there. If it still does not work, wait until I update the sample project this week.