Flow price: --
dc1705a5f4e8741ad0ebb56ef1415da11ef8adeee0581e0e474fc694da919812

Transaction

Hash: dc1705a5f4e8741ad0ebb56ef1415da11ef8adeee0581e0e474fc694da919812
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> dc1705a5f4e8741ad0ebb56ef1415da11ef8adeee0581e0e474fc694da919812:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
dc1705a5f4e8741ad0ebb56ef1415da11ef8adeee0581e0e474fc694da919812
Status:
ERROR
Block height:
40157478
Block id:
f1349df19049e8ddf81c438b42cf56847a1326c5e7ce761802aed8c2d8f10143
Timestamp:
Wednesday 2 November 2022 at 09:16:55 UTC
()
Proposer:
Authorizers:
Gas used:
46