Flow price: --
7630c4598f21d2b34a08d0478fda2a474a0d70739c01d0e07e3c525b4492e9c6

Transaction

Hash: 7630c4598f21d2b34a08d0478fda2a474a0d70739c01d0e07e3c525b4492e9c6
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 7630c4598f21d2b34a08d0478fda2a474a0d70739c01d0e07e3c525b4492e9c6:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
7630c4598f21d2b34a08d0478fda2a474a0d70739c01d0e07e3c525b4492e9c6
Status:
ERROR
Block height:
39854599
Block id:
f6371645c0076f24ded6482a1e2f2e75e554ddad07c9dd5b66c206621b1deffc
Timestamp:
Friday 28 October 2022 at 07:38:28 UTC
()
Proposer:
Authorizers:
Gas used:
50