Flow price: --
b13e9feb9221d79fd01a1f721308a7a7c6eaffeef2803ac1dcd4e9b4ddc9c50e

Transaction

Hash: b13e9feb9221d79fd01a1f721308a7a7c6eaffeef2803ac1dcd4e9b4ddc9c50e
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b13e9feb9221d79fd01a1f721308a7a7c6eaffeef2803ac1dcd4e9b4ddc9c50e: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:
b13e9feb9221d79fd01a1f721308a7a7c6eaffeef2803ac1dcd4e9b4ddc9c50e
Status:
ERROR
Block height:
39910764
Block id:
423ff84aa7e43c63b71172116e389a25cd15d1c45628421cf80faf84016a7109
Timestamp:
Saturday 29 October 2022 at 06:04:13 UTC
()
Proposer:
Authorizers:
Gas used:
50