Flow price: --
18aca3bffb63928c9b066e65fe6e885fc6b3073d04886f7e4a47839acdabb290

Transaction

Hash: 18aca3bffb63928c9b066e65fe6e885fc6b3073d04886f7e4a47839acdabb290
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 18aca3bffb63928c9b066e65fe6e885fc6b3073d04886f7e4a47839acdabb290:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
18aca3bffb63928c9b066e65fe6e885fc6b3073d04886f7e4a47839acdabb290
Status:
ERROR
Block height:
39889780
Block id:
5a07c2b7b5c0e7c0eba4d26b457795e363372ede0bb0d56a7041188e865637f1
Timestamp:
Friday 28 October 2022 at 21:42:14 UTC
()
Proposer:
Authorizers:
Gas used:
48