Flow price: --
a200a498195e0396562f4fec1f3d8261d81603b2c2f8d5e217262324a8bd49e7

Transaction

Hash: a200a498195e0396562f4fec1f3d8261d81603b2c2f8d5e217262324a8bd49e7
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a200a498195e0396562f4fec1f3d8261d81603b2c2f8d5e217262324a8bd49e7:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a200a498195e0396562f4fec1f3d8261d81603b2c2f8d5e217262324a8bd49e7
Status:
ERROR
Block height:
40065728
Block id:
34da96db9547cbc431e951670fe9ccc237f07ef43b36e651c86b2d4ba9582ed5
Timestamp:
Monday 31 October 2022 at 20:07:53 UTC
()
Proposer:
Authorizers:
Gas used:
49