Flow price: --
160c95cf1e3163e674f06fa7185c48f2b562d3a7aab039740469fe58af2b62a2

Transaction

Hash: 160c95cf1e3163e674f06fa7185c48f2b562d3a7aab039740469fe58af2b62a2
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 160c95cf1e3163e674f06fa7185c48f2b562d3a7aab039740469fe58af2b62a2:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
160c95cf1e3163e674f06fa7185c48f2b562d3a7aab039740469fe58af2b62a2
Status:
ERROR
Block height:
40032123
Block id:
c1f67600e24df42c65f51d91f619d6de807f50c7b8fcfa1720985117a3ef8aeb
Timestamp:
Monday 31 October 2022 at 06:34:49 UTC
()
Proposer:
Authorizers:
Gas used:
49