editing loot error

i have my server up and running and my db works fine and stuff but i still have a problem when i try to edit the loots on certain monsters like earthworms, worms, woldbulcans etc. im running a 1299 server that my friends can get on and stuff. the error that i get when i edit is
"key column information is insufficient or incorrect. Too many rows were affected by update."
i need somebody to tell me what im doing wrong or how to fix it please and ty.

you wrote something wrong in that column or
you need to press on other column to get it off

lol im not that stupid... it still didnt work tho i went through it again... and it only happends to certain mobs. ty tho

does this happen to anybody else???