Pokemon Blue/Blau Cheats on R36S

Hello :)

i've tried the codes from the sheet you can load into the game directly from R36S, but none (i guess one worked (Item duplicate pos. 2) are working. I have the german version and i used the cheats for german. Nothing happens or the games glitches like hell. I also tried putting cheats from the internet (https://www.pokemoncoders.com/pokemon-blue-cheats/) by myself - but nope.

Anyone has any suggestion? I also tried to find other posts but i cant find.
Thanks