Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: unexpectedly found nil while forcing an Optional value
  --> 80bfb1fa73401428d45fac582a61cb18ebcacd35dc0dea852e41fc755bf085f6:38:157
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38 |       let receiverRef = recipient.getCapability(/public/ChainmonstersRewardCollection)!.borrow<&{ChainmonstersRewards.ChainmonstersRewardCollectionPublic}>()!
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