Flow price: --
2ffdc31dafe4153f51a0e31cdd8a24345fc9d66c4ff1b10958ac6ea9bb9ba375

Transaction

Hash: 2ffdc31dafe4153f51a0e31cdd8a24345fc9d66c4ff1b10958ac6ea9bb9ba375
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 2ffdc31dafe4153f51a0e31cdd8a24345fc9d66c4ff1b10958ac6ea9bb9ba375:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
2ffdc31dafe4153f51a0e31cdd8a24345fc9d66c4ff1b10958ac6ea9bb9ba375
Status:
ERROR
Block height:
40063601
Block id:
60e49f791a4c4b0aa03236abe908473cf2b6a351934e11cc0c879922b098a9aa
Timestamp:
Monday 31 October 2022 at 19:16:56 UTC
()
Proposer:
Authorizers:
Gas used:
46