Flow price: --
5947b714e0e21018661b8f4386e412e1556ca960fdd964fa78fe50daea8b7786

Transaction

Hash: 5947b714e0e21018661b8f4386e412e1556ca960fdd964fa78fe50daea8b7786
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 5947b714e0e21018661b8f4386e412e1556ca960fdd964fa78fe50daea8b7786:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
5947b714e0e21018661b8f4386e412e1556ca960fdd964fa78fe50daea8b7786
Status:
ERROR
Block height:
40168850
Block id:
46122a10000dd6e9de4e216df316061d7deaed3de003bd36aa653e19a20d3328
Timestamp:
Wednesday 2 November 2022 at 13:52:28 UTC
()
Proposer:
Authorizers:
Gas used:
48