Flow price: --
d9fc86d91100912b48e2602151518eb8a844d65d24ed5f17e28a396c3fea8e16

Transaction

Hash: d9fc86d91100912b48e2602151518eb8a844d65d24ed5f17e28a396c3fea8e16
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> d9fc86d91100912b48e2602151518eb8a844d65d24ed5f17e28a396c3fea8e16:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
d9fc86d91100912b48e2602151518eb8a844d65d24ed5f17e28a396c3fea8e16
Status:
ERROR
Block height:
40005759
Block id:
eae4711f5219bbaac0c4baaf4bb5d5729486bce532259765d253efa4dc6b1b01
Timestamp:
Sunday 30 October 2022 at 20:03:49 UTC
()
Proposer:
Authorizers:
Gas used:
62