Flow price: --
187c21161c57bc2bb5507352a5a4e8131f36fd6d68bcaae2c11d450a434e4dfe

Transaction

Hash: 187c21161c57bc2bb5507352a5a4e8131f36fd6d68bcaae2c11d450a434e4dfe
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 187c21161c57bc2bb5507352a5a4e8131f36fd6d68bcaae2c11d450a434e4dfe: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:
187c21161c57bc2bb5507352a5a4e8131f36fd6d68bcaae2c11d450a434e4dfe
Status:
ERROR
Block height:
39758118
Block id:
7e04ab4112eb2dd431eb1bf81e50ed67a258bd660af25e9a19f777f1a9a4efc4
Timestamp:
Wednesday 26 October 2022 at 16:42:52 UTC
()
Proposer:
Authorizers:
Gas used:
47