Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: unexpectedly found nil while forcing an Optional value
  --> 1b462cc2548e3b30114a13f916be0d6be319bc1f4781dff5ca351da27af748dc:38:157
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38 |       let receiverRef = recipient.getCapability(/public/ChainmonstersRewardCollection)!.borrow<&{ChainmonstersRewards.ChainmonstersRewardCollectionPublic}>()!
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