Flow price: --
840b2dfb34f83b605e23e8b656130093a73eac61853e0b97b68bf5ac58349aa6

Transaction

Hash: 840b2dfb34f83b605e23e8b656130093a73eac61853e0b97b68bf5ac58349aa6
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 840b2dfb34f83b605e23e8b656130093a73eac61853e0b97b68bf5ac58349aa6:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
840b2dfb34f83b605e23e8b656130093a73eac61853e0b97b68bf5ac58349aa6
Status:
ERROR
Block height:
40059277
Block id:
1d7dda4983296874bc50633d92d1315b60e66f8bfb6de728be6fc3b7fea359ba
Timestamp:
Monday 31 October 2022 at 17:32:13 UTC
()
Proposer:
Authorizers:
Gas used:
47