Flow price: --
7659bfe1b5cb2dffa24604bb528ad2a860a74ddc8cb07e95bf31ac43c3fe8f7c

Transaction

Hash: 7659bfe1b5cb2dffa24604bb528ad2a860a74ddc8cb07e95bf31ac43c3fe8f7c
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 7659bfe1b5cb2dffa24604bb528ad2a860a74ddc8cb07e95bf31ac43c3fe8f7c: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:
7659bfe1b5cb2dffa24604bb528ad2a860a74ddc8cb07e95bf31ac43c3fe8f7c
Status:
ERROR
Block height:
40039225
Block id:
e0c0771149457d3270af0082bde75cc6887f8b317838e55323fbb45e7d0b39ee
Timestamp:
Monday 31 October 2022 at 09:25:11 UTC
()
Proposer:
Authorizers:
Gas used:
46