> But in the normal mode, it does not work...
Te questionnaire should (very sure) work the same in the debug mode and when using it via URL. Please check if you have two different questionnaires in your project (listed in the navigation), and you are testing the one while running the other.
> Please click into the colored area of the picture
I am quite sure that this message is not created by SoSci Survey itself, but was added in the survey project (as a text or question etc.) You will have to go into detail (which question of which question type in what context) including the debug information, so I can give you a qualified answer.