Issues starting iris node

Hi I am trying to start the IRIS node but when I perform the following command, Ii get the following error (bold) and it just stops - I was wondering if I made a mistake somewhere or my settings where incorrect:

10:26PM INF port binded module=x/ibc/port port=transfer
10:26PM INF claimed capability capability=1 module=transfer name=ports/transfer
panic: unknown field “pending_htlcs” in types.GenesisState

goroutine 1 [running]:
github.com/cosmos/cosmos-sdk/codec.(*ProtoCodec).MustUnmarshalJSON(0xc0004caa00, 0xc0004de3c0, 0x14, 0x18, 0x24935b0, 0xc0071d69c0)
/home/iris/go/pkg/mod/github.com/cosmos/cosmos-sdk@v0.42.3/codec/proto_codec.go:160 +0x98

Thanks

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