MySql error 1215: Cannot add foreign key constraint

in my RIM I got the 1215 MySql error.

I know the meaning of the error, that my constraints are wrong. But I can't seem to fix it.

the error is at line 33, the creation of table Poker_event

create table Poker_event
   (date_time       datetime    not null,
    min_players     int         not null,
    max_players     int         not null,
    house_number    int         not null, 
    postal_code     varchar(6)  not null,
primary key(date_time),
foreign key(house_number, postal_code)   references Location(house_number, postal_code) on delete set null on update cascade);

my code is:

create database FullHouseGr1;
use FullHouseGr1;
create table Player
   (player_id       int             not null,
    first_name      varchar(20)     not null,
    surname         varchar(20)     not null,
    addres          varchar(40)     not null,
    postal_code     varchar(6)      not null,
    place           varchar(40)     not null,
    phone_number    varchar(20)     not null,
    email_addres    varchar(255)    not null,
    points          int             not null,
primary key(player_id));

create table Location
   (house_number    int       not null,
    postal_code     varchar(6)  not null,
    capacity        int       not null,
    place           varchar(40) not null,
    street          varchar(40) not null,
primary key(house_number, postal_code));

create table Poker_event
   (date_time       datetime    not null,
    min_players     int         not null,
    max_players     int         not null,
    house_number    int         not null, 
    postal_code     varchar(6)  not null,
primary key(date_time),
foreign key(house_number, postal_code)   references Location(house_number, postal_code) on delete cascade on update cascade);

create table Tournament
   (date_time   datetime    not null,
    prize       int         not null,
primary key(date_time),
foreign key(date_time)  references Poker_event(date_time) on delete no action on update cascade);

create table Tournament_round
   (round_nr    int       not null,
    date_time   datetime    not null,
primary key(date_time, round_nr),
foreign key(date_time)  references Tournament(date_time) on delete no action on update cascade);

create table Tournament_table
   (winner      int         not null,
    date_time   datetime    not null,
    round_nr    int         not null,
primary key(winner, date_time, round_nr),
foreign key(date_time)  references Tournament(date_time) on delete no action on update cascade,
foreign key(round_nr)   references Tournament(round_nr) on delete no action on update cascade);

create table Professional
   (p_name    varchar(40) not null,
primary key(name));

create table Masterclass
   (date_time       datetime    not null,
    min_rating      int       not null,
    name            varchar(40) not null,
primary key(date_time),
foreign key(p_name)       references Professional(p_name) on delete no action on update cascade,
foreign key(date_time)  references Poker_event(date_time) on delete no action on update cascade);

create table Poker_event_player
   (date_time   datetime    not null,
    has_payed   boolean     not null,
    player_id   int         not null,
primary key(date_time,  player_id),
foreign key(date_time)  references Poker_event(date_time) on delete no action on update cascade,
foreign key(player_id)  references Player on delete no action on update cascade);

create table    Player_tournament_table
   (winner      int         not null,
    date_time   datetime    not null,
    round_nr    int         not null,
    player_id   int         not null,
primary key(winner, date_time, round_nr, player_id),
foreign key(winner)     references  Tournament_table on delete no action on update cascade,
foreign key(round_nr)   references  Tournament_round on delete no action on update cascade,
foreign key(date_time)  references  Tournament on delete no action on update cascade,
foreign key(player_id)  references  Player on delete no action on update cascade);