Flow price: --
1b949e4af3199812c120a508f7f6e86ba53a490e1fbb3a26bb324a60329ff132

Transaction

Hash: 1b949e4af3199812c120a508f7f6e86ba53a490e1fbb3a26bb324a60329ff132
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 1b949e4af3199812c120a508f7f6e86ba53a490e1fbb3a26bb324a60329ff132:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
1b949e4af3199812c120a508f7f6e86ba53a490e1fbb3a26bb324a60329ff132
Status:
ERROR
Block height:
39870740
Block id:
17a0f0d679f6934256d6c8b2e9a30fc9975c8e555042f3f1a3af853ac21aa790
Timestamp:
Friday 28 October 2022 at 14:07:39 UTC
()
Proposer:
Authorizers:
Gas used:
47