Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: unexpectedly found nil while forcing an Optional value
  --> 4e6d80ecba396d352b36edaa57df662bd4fd75faac733256d1825a6e2b21c7ec:38:157
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38 |       let receiverRef = recipient.getCapability(/public/ChainmonstersRewardCollection)!.borrow<&{ChainmonstersRewards.ChainmonstersRewardCollectionPublic}>()!
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