Gravity Ledger - runtime error on .SetOraclesToNebula()

[sham789]

I[2020-12-02|15:18:58.544] Executed block                               module=state height=602 validTxs=1 invalidTxs=0
I[2020-12-02|15:18:58.547] Committed state                              module=state height=602 txs=1 appHash=
E[2020-12-02|15:18:58.599] Error on broadcastTxCommit                   module=rpc err="tx already exists in cache"
Tx consuls update (bsc): 0x323b8b13aa69493e20903e103f06f88fae2b762bc2939ffb62dea9b2c82e03f1
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x102d2fd]

goroutine 30474 [running]:
github.com/Gravity-Tech/gravity-core/common/adaptors.(*WavesAdaptor).SetOraclesToNebula(0xc000d39270, 0x5301000000000000, 0xb629874fa6a4ea9f, 0x9f4164491024b535, 0xefab7d77ee5c390, 0xc007d94740, 0x5, 0x8, 0xc0080b0c00, 0x2, ...)
	/node/common/adaptors/waves.go:317 +0x2cd
github.com/Gravity-Tech/gravity-core/ledger/scheduler.(*Scheduler).sendOraclesToNebula(0xc000df4300, 0x5301000000000000, 0xb629874fa6a4ea9f, 0x9f4164491024b535, 0xefab7d77ee5c390, 0x9f4164491024b501, 0x2, 0x0, 0x0)
	/node/ledger/scheduler/process.go:406 +0x901
github.com/Gravity-Tech/gravity-core/ledger/scheduler.(*Scheduler).processByHeight(0xc000df4300, 0x258, 0x40c49f, 0xc000d310d8)
	/node/ledger/scheduler/process.go:61 +0x44d
github.com/Gravity-Tech/gravity-core/ledger/scheduler.(*Scheduler).process(0xc000df4300, 0x258)
	/node/ledger/scheduler/process.go:13 +0x39
created by github.com/Gravity-Tech/gravity-core/ledger/scheduler.(*Scheduler).HandleBlock
	/node/ledger/scheduler/scheduler.go:51 +0x43b