Flow price: --
18cea94f89e3dcd0cf04ef3732e8d9f67373d968ad542bbc18b0243578294345

Transaction

Hash: 18cea94f89e3dcd0cf04ef3732e8d9f67373d968ad542bbc18b0243578294345
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 18cea94f89e3dcd0cf04ef3732e8d9f67373d968ad542bbc18b0243578294345:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
18cea94f89e3dcd0cf04ef3732e8d9f67373d968ad542bbc18b0243578294345
Status:
ERROR
Block height:
40151120
Block id:
b34d3e3071f5bb22252bf3af15fd2307d77bcb5acfae216f2c878b274b7cc456
Timestamp:
Wednesday 2 November 2022 at 06:41:43 UTC
()
Proposer:
Authorizers:
Gas used:
49