Obsolescence of links for participants
First of all, thank you for offering such an amazing tool as JATOS, plus the free server... dreams come true.
I have a question about the durability of links we send to participants. It happened a few times that the links I sent would be deprecated with the message "the study can only be done once" or stuck at the "loading" screen (I used lab.js for building the study).
So since the study is a questionnaire that is a bit longer than 40 minutes, I'm concerned that it could be an issue for the data collection... How can I ensure that each participant get a valid link ?
Thank you for your help.