Flow price: --
ac63168fa58e9a2638e5687ce4985a7aeb5da306e5c6ce103d9775c7e0f73708

Transaction

Hash: ac63168fa58e9a2638e5687ce4985a7aeb5da306e5c6ce103d9775c7e0f73708
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> ac63168fa58e9a2638e5687ce4985a7aeb5da306e5c6ce103d9775c7e0f73708:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
ac63168fa58e9a2638e5687ce4985a7aeb5da306e5c6ce103d9775c7e0f73708
Status:
ERROR
Block height:
39974774
Block id:
c30e5c210aff1c545aec3b76adbab62cb9db2eece6d30fdcbec98871dde2817a
Timestamp:
Sunday 30 October 2022 at 07:40:43 UTC
()
Proposer:
Authorizers:
Gas used:
47