Flow price: --
23f121cba9cf33fd99a01dcd84d5eb95ce7ed6b122b5ffdf9f4f13e0a2c19fba

Transaction

Hash: 23f121cba9cf33fd99a01dcd84d5eb95ce7ed6b122b5ffdf9f4f13e0a2c19fba
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 23f121cba9cf33fd99a01dcd84d5eb95ce7ed6b122b5ffdf9f4f13e0a2c19fba: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:
23f121cba9cf33fd99a01dcd84d5eb95ce7ed6b122b5ffdf9f4f13e0a2c19fba
Status:
ERROR
Block height:
40162927
Block id:
85d03424725de24fbeee1860b1787fd93e52dc4049a1fb1e30a84a664e2f3264
Timestamp:
Wednesday 2 November 2022 at 11:29:47 UTC
()
Proposer:
Authorizers:
Gas used:
47