Some BUG TT11.00.35

hello, who know what is source for this log error:

Code:

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Error : Can't throw away the item. .\MapClass.cpp 380
00:00:05 Monster Item Drop [6][48][95] : serial:51060129 [Staff of Resurrection][0][0][0][0] Ex:[0,0,0,0,0,0,0] Set:[0] Slot:[0,0,0,0,0]
Error : Can't throw away the item. .\MapClass.cpp 380
00:00:05 Monster Item Drop [6][48][59] : serial:51060130 [Dragon Spear][2][0][0][0] Ex:[0,0,0,0,0,0,0] Set:[0] Slot:[0,0,0,0,0]
Error : Can't throw away the item. .\MapClass.cpp 380
00:00:05 Monster Item Drop [6][30][75] : serial:51060131 [Ring of Transformation][0][0][0][0] Ex:[0,0,0,0,0,0,0] Set:[0] Slot:[0,0,0,0,0]
Error : Can't throw away the item. .\MapClass.cpp 380

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This error appear only in arena MAP

Intra in item(kor)new.txt si scoatele de la drop !

acele iteme zici? nu cred ca e asta, am scos tot, e un alt item care face asa.