It is a vice of diction by which only "that" is used where it is appropriate to say "of that". See dequeism .
QUEISMO is the omission of any preposition within a sentence, particularly the word of : It is time for you to leave; passes the gate; serves the people of the meson.
It is a mistake that is to use the phrase ¨de that when
It is the iindebida of the proposition in front the conjugacion that suppression