Flow price: --
c749b8e72fde963065335a2a98df1b9429efe0eaa191e2745408a37fd7b081b9

Transaction

Hash: c749b8e72fde963065335a2a98df1b9429efe0eaa191e2745408a37fd7b081b9
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> c749b8e72fde963065335a2a98df1b9429efe0eaa191e2745408a37fd7b081b9:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
c749b8e72fde963065335a2a98df1b9429efe0eaa191e2745408a37fd7b081b9
Status:
ERROR
Block height:
39973015
Block id:
acfe863556479b51f4cb099b7529065c7d2142d15afd54d8fa28104d4b3eb277
Timestamp:
Sunday 30 October 2022 at 06:58:47 UTC
()
Proposer:
Authorizers:
Gas used:
50