"Dropped item container without inventory" warning

It will cause the server to frame off the frame
Look at the picture
https://ws1.sinaimg.cn/large/0061aDrOly1fme84bdkfcj30fi037746.jpg

 

Dropped item container without inventory：item_drop_backpack[5258642]
[DOUBLEPOST=1513085583][/DOUBLEPOST][5258642] This value is not fixed