Fan Trap

$\backslash$table$[[$TEAM$,$DIVISION,,PLAYER$],[$PK$,$TEAM$\_$ID$,$PK$,$DIV$\_$ID$,,$PK$,$PLAYER ID$],[$FK$1,\backslash$table$[[$TEAM$\_$NAME$],[$DIV$\_$ID$]],,$DIV$\_$NAME,,FK$1,\backslash$table$[[$PLAYER$\_$NAME$],[$DIV$\_$ID$]]]]$

Fan Traps actually create the situation where data cannot be properly added to a database. Why did this 'Fan Trap' occur?

Mis$-$identification of the relationship between TEAM and DIVISION

Mis$-$identification of the relationship between TEAM and PLAYER

Mis$-$identification of the relationship between DIVISION and PLAYER