Flow price: --
f2995c41a1e8863fecf4256a984dd7131558260aa4344607f7897384ba42d5ee

Transaction

Hash: f2995c41a1e8863fecf4256a984dd7131558260aa4344607f7897384ba42d5ee
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f2995c41a1e8863fecf4256a984dd7131558260aa4344607f7897384ba42d5ee: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:
f2995c41a1e8863fecf4256a984dd7131558260aa4344607f7897384ba42d5ee
Status:
ERROR
Block height:
39921517
Block id:
99cbf3c67b8a7ec95be704238ebdf1fb39682a78d47ae50b21b7d384a52a20dd
Timestamp:
Saturday 29 October 2022 at 10:23:23 UTC
()
Proposer:
Authorizers:
Gas used:
50