Flow price: --
a953b3ac0214a07d5b7686ff36c9af032665249191b330a885eeaa507ff28f03

Transaction

Hash: a953b3ac0214a07d5b7686ff36c9af032665249191b330a885eeaa507ff28f03
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a953b3ac0214a07d5b7686ff36c9af032665249191b330a885eeaa507ff28f03:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a953b3ac0214a07d5b7686ff36c9af032665249191b330a885eeaa507ff28f03
Status:
ERROR
Block height:
40045903
Block id:
11c0be44e57eb5a720b9332ffb549db61622e3a4c12117f28f582c6dc53e2d4a
Timestamp:
Monday 31 October 2022 at 12:07:13 UTC
()
Proposer:
Authorizers:
Gas used:
46