Flow price: --
9c435e1237eee2ede8cb04357f0ecc6b07b9231d24b58843f5119ccea8e081f7

Transaction

Hash: 9c435e1237eee2ede8cb04357f0ecc6b07b9231d24b58843f5119ccea8e081f7
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 9c435e1237eee2ede8cb04357f0ecc6b07b9231d24b58843f5119ccea8e081f7:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
9c435e1237eee2ede8cb04357f0ecc6b07b9231d24b58843f5119ccea8e081f7
Status:
ERROR
Block height:
39994473
Block id:
e6f078cf2b3bbff2f8bf863ad36783f88dcf780f4814ba0935506f4d1b6afe67
Timestamp:
Sunday 30 October 2022 at 15:32:42 UTC
()
Proposer:
Authorizers:
Gas used:
49