Bug when changing weapons (Dark Souls 2)

Hello. I have such a problem: with the help of the trainer http://www.playground.ru/cheats/dark_souls_2_trainer_trejner_13_all_versions_artur_update_11_01_2016-63684/ I
dropped the Ivory King's two-handed sword from a mob, dropped not 1, but a whole bunch. Now, when I open the weapons tab, the game crashes, I try to remove these swords, I reach one of them, the game crashes. When you open a sharpening or upgrade from a blacksmith, the game also crashes. How can you remove them from your inventory altogether? Is there anything you can do?