Hello! Please take a look on http://www.osm.org/node/4296928639. You have added a historicisation. 
    addr:housenumber:2021 = 41
    addr:postcode:2021 = 08800
    addr:street:2021 = Rambla de Sant Jordi
    amenity:2021 = restaurant
    entrance:2021 = yes
    name:2021 = Granja Bar La Creu
    phone:2021 = +34 938140203
If the building isn't destroyed, the address and the entrance exists.
    addr:housenumber = 41
    addr:postcode = 08800
    addr:street = Rambla de Sant Jordi
    amenity:2021 = restaurant
    entrance = yes
    name:2021 = Granja Bar La Creu
    phone:2021 = +34 938140203
It can also be assumed that this restaurant already existed in 2020 and that the telephone number is not needed as a means of identification.
    addr:housenumber = 41
    addr:postcode = 08800
    addr:street = Rambla de Sant Jordi
    amenity:-2021 = restaurant
    entrance = yes
    name:-2021 = Granja Bar La Creu
Please be careful when using the temporal historicisation!