Flow price: --
cf335e3f39bc4c126fe3a3f2e671583e429719705e8a20a0c6fa13f2c60f7bbd

Transaction

Hash: cf335e3f39bc4c126fe3a3f2e671583e429719705e8a20a0c6fa13f2c60f7bbd
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> cf335e3f39bc4c126fe3a3f2e671583e429719705e8a20a0c6fa13f2c60f7bbd: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:
cf335e3f39bc4c126fe3a3f2e671583e429719705e8a20a0c6fa13f2c60f7bbd
Status:
ERROR
Block height:
39880124
Block id:
b3b1e6184e6cabfa570c9c31a1c22173167bad199b49516d57d1293e937fee54
Timestamp:
Friday 28 October 2022 at 17:52:29 UTC
()
Proposer:
Authorizers:
Gas used:
49