Flow price: --
7fb155d4b3a0173f7f65e0f3692f71014810ed5e5056d07909ac5e012e668352

Transaction

Hash: 7fb155d4b3a0173f7f65e0f3692f71014810ed5e5056d07909ac5e012e668352
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 7fb155d4b3a0173f7f65e0f3692f71014810ed5e5056d07909ac5e012e668352:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
7fb155d4b3a0173f7f65e0f3692f71014810ed5e5056d07909ac5e012e668352
Status:
ERROR
Block height:
39805782
Block id:
e5ef6e70fa3294fd8ebda0ff4dd41cd12522d9961c0e7169a6b55c9b65e62d11
Timestamp:
Thursday 27 October 2022 at 11:54:51 UTC
()
Proposer:
Authorizers:
Gas used:
47