Ghost traveller in my calendar (calendar bug)

[Mathieu23]

Right know I have a ghost traveller in my calendar and no way to remove it. I cannot reserve these dates anymore! 

A traveller booked a trip at my place according to the disponibilities. But then I was not able to accept the demand (the red button was blured and the system said that the dates are not availables even if they are, the travelers choose those dates...). 

I tried to «make an offer» but same thing. The date were not available even if they are. On my calendar, I can see, the image of the traveller on the date that she ask. 

I tried to refuse the demand (and restart the process) but the system was not deleting it. Finally it did, I have no demand waiting right now.  The traveller decided to finally switch to another host, she as already concluded with another host, but in my calandar she is still blooking those date!