Flow price: --
f5a5e1afd840bb3bece152f445ea39675dbf54346f9f4ba3c5a5f88a82fc4fe4

Transaction

Hash: f5a5e1afd840bb3bece152f445ea39675dbf54346f9f4ba3c5a5f88a82fc4fe4
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f5a5e1afd840bb3bece152f445ea39675dbf54346f9f4ba3c5a5f88a82fc4fe4:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f5a5e1afd840bb3bece152f445ea39675dbf54346f9f4ba3c5a5f88a82fc4fe4
Status:
ERROR
Block height:
39901308
Block id:
aae2f70660506dea434e1f0b9ab676c3e6669b03db230074c65eef16bd382d87
Timestamp:
Saturday 29 October 2022 at 02:17:08 UTC
()
Proposer:
Authorizers:
Gas used:
46