Crash

[GabBiswajit]

Chest type : TYPE_CHEST

Thread: Main
Error: Index invalid or out of range
File: pmsrc/src/inventory/SimpleInventory
Line: 52
Type: RuntimeException
Backtrace:
#0 pmsrc/src/inventory/BaseInventory(71): pocketmine\inventory\SimpleInventory->getItem(int 27)
#1 plugins/GBMinion/src/BhawaniSingh/HCMinion/entities/MinionEntity(367): pocketmine\inventory\BaseInventory->setItem(int 27, object pocketmine\item\ItemBlock#86602)
#2 /home/container/virions/InvMenu_dev-196 (1).phar/src/muqsit/invmenu/InvMenu(166): BhawaniSingh\HCMinion\entities\MinionEntity->BhawaniSingh\HCMinion\entities\{closure}(true)
#3 /home/container/virions/InvMenu_dev-196 (1).phar/src/muqsit/invmenu/session/PlayerSession(60): muqsit\invmenu\InvMenu::muqsit\

Single chest have 27 slots so why crash ??