Error message when completing survey

On completion of my study this error message comes up:

Error

Unfortunately we encountered the following error:

  • when uploading the survey response for experiment: pavlovia/survey and survey: 84b58200-4639-4825-9160-3ee0943eabb2
  • unable to query the surveyResponses collection: key ‘I feel like I am beautiful even if I am different from media images of attractive people (e.g., models, actresses/actors)’ must not contain ‘.’

Try to run the experiment again. If the error persists, contact the experiment designer.

Does anyone know how to fix it?

Thanks

According to the error message you have a very long variable name containing a full stop (in e.g.)

The variable name should be short. You can (and normally should) change the question title to change what the participant sees to something longer.