Just to clarify: 1. the photo you showed is the responder-view, when people try to open the link to answer the question, right? 2. what do you mean by disappearing? What disappeared? when did this disappear? can you access to the response tab? 3. did you set up any "closed date" to this form?
2. what do you mean that responses are not available? - you cannot open the response tab? - or there is 0 responses shown in response tab even though you know some submitted? - or the responses disappeared for some reasons?