Crashes from time to time

From 6.21 gas, the server crashes from time to time, About an hour to half an hour,please help me see the reason. thank you

https://paste.ubuntu.com/p/NZvhvKtTGc/

This looks like a problem with the version of Yabba you are using:

java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(Unknown Source) at java.util.ArrayList$Itr.next(Unknown Source) at com.latmod.yabba.tile.TileItemBarrelConnector.insertItem(TileItemBarrelConnector.java:202)

OK, thank you. I’ll try another version of Yabba

It took me about half a month to get this

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