Flow price: --
a18b2a8d920bce58fdb4d7883ffa8e12dc89b5aae659b515d9f2500a5701ffd2

Transaction

Hash: a18b2a8d920bce58fdb4d7883ffa8e12dc89b5aae659b515d9f2500a5701ffd2
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a18b2a8d920bce58fdb4d7883ffa8e12dc89b5aae659b515d9f2500a5701ffd2:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a18b2a8d920bce58fdb4d7883ffa8e12dc89b5aae659b515d9f2500a5701ffd2
Status:
ERROR
Block height:
40056855
Block id:
02ba3f61c9a32c94094b9b0b49354eb4877031671c744e77c6776771f3cbe6d1
Timestamp:
Monday 31 October 2022 at 16:33:08 UTC
()
Proposer:
Authorizers:
Gas used:
47