@Jihan3
If you read the posting about this subject, you would have noticed in the answers it can take up to 24 hours before the listing is fully integrated in the search system. I can see your listing is still in this proces, but not in the search system allready.(as the booking form is also not yet working)
So have some more patience and wait until this link shows a result:
https://www.airbnb.com/s/homes?host_id=125709950&map_toggle=true
BTW searching with exact address is useless, the search only excepts countries, counties, named regions, cities and villages, named neighbourhoods etc , etc.. so in your case search for "berlin charlottenburg".
Best regards,
Emiel