Flow price: --
d175268d635085f755e30f0bbca6952769e2ab5fea5e8b2b949048aad9e8992b

Transaction

Hash: d175268d635085f755e30f0bbca6952769e2ab5fea5e8b2b949048aad9e8992b
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> d175268d635085f755e30f0bbca6952769e2ab5fea5e8b2b949048aad9e8992b: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:
d175268d635085f755e30f0bbca6952769e2ab5fea5e8b2b949048aad9e8992b
Status:
ERROR
Block height:
40121410
Block id:
1a4e31b2215134078217674b6ed0ebeb0eae06ea77a8f7eff395dfb5c4ff28fc
Timestamp:
Tuesday 1 November 2022 at 18:35:08 UTC
()
Proposer:
Authorizers:
Gas used:
46