Internal Exception
Internal Exception: io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBoundsException: index: 5, length: 13632 (expected: range(0,30))
![](https://itemsadder.devs.beer/~gitbook/image?url=https%3A%2F%2F1022067277-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Fspaces%252F8zAFV2tZ9EL5TcR6W3RE%252Fuploads%252FUuzDm3f2goKZjU3egMfw%252Fimage.png%3Falt%3Dmedia%26token%3D52aeaef9-7edf-4e8a-adaa-01926811cf03&width=768&dpr=4&quality=100&sign=c2508a76&sv=1)
Open config.yml
of ItemsAdder and change this value to false
: optimized-packets: false
config.yml
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