Flow price: --
40b18e705a238b83cf2b8ed2b708f7dec170b8f6d8b1718001c2b559e25fa587

Transaction

Hash: 40b18e705a238b83cf2b8ed2b708f7dec170b8f6d8b1718001c2b559e25fa587
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 40b18e705a238b83cf2b8ed2b708f7dec170b8f6d8b1718001c2b559e25fa587:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
40b18e705a238b83cf2b8ed2b708f7dec170b8f6d8b1718001c2b559e25fa587
Status:
ERROR
Block height:
40133505
Block id:
0a75bcc0dc4e8e3b124b991b97c80f7897e269a0a563acba2d5ebfd53e69d2c7
Timestamp:
Tuesday 1 November 2022 at 23:32:43 UTC
()
Proposer:
Authorizers:
Gas used:
49