Flow price: --
b89d470bf87ae750122acd697b3c0082a519bedbbf4b2330e8b5357efe9089de

Transaction

Hash: b89d470bf87ae750122acd697b3c0082a519bedbbf4b2330e8b5357efe9089de
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b89d470bf87ae750122acd697b3c0082a519bedbbf4b2330e8b5357efe9089de: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:
b89d470bf87ae750122acd697b3c0082a519bedbbf4b2330e8b5357efe9089de
Status:
ERROR
Block height:
40057709
Block id:
520e6cf90a408fabc4295b77cba8d844a81b3f4363f2358bb0096a1c3767306d
Timestamp:
Monday 31 October 2022 at 16:54:34 UTC
()
Proposer:
Authorizers:
Gas used:
46