Thank you Jens for your answer, but the code didn't change anything to the project.
So I can give you the information you may need:
ID: 379826 (Questionnaire SPEN)
It's in the page called "Page 4"
The 4 questions of type 112
The name of my account is "stquarro"
The name of my team is "IST_Lausanne"
The problem is that the five items of the scale are not in the same line, even if we use a wider computer screen...