Flow price: --
1c763e42f48a7abe33cc8051bf40b3c1fd59f922404f1407e9049845e6e1b092

Transaction

Hash: 1c763e42f48a7abe33cc8051bf40b3c1fd59f922404f1407e9049845e6e1b092
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 1c763e42f48a7abe33cc8051bf40b3c1fd59f922404f1407e9049845e6e1b092:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
1c763e42f48a7abe33cc8051bf40b3c1fd59f922404f1407e9049845e6e1b092
Status:
ERROR
Block height:
40159397
Block id:
a4231b4275e959cb7a517cf039921ee00d7170cf9c304cdeec125a97dc97ebfe
Timestamp:
Wednesday 2 November 2022 at 10:03:54 UTC
()
Proposer:
Authorizers:
Gas used:
49