Flow price: --
c85f79211b94dea60184eff01d826496cb6d36e85cc92e3b632a4bb19b90db3d

Transaction

Hash: c85f79211b94dea60184eff01d826496cb6d36e85cc92e3b632a4bb19b90db3d
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> c85f79211b94dea60184eff01d826496cb6d36e85cc92e3b632a4bb19b90db3d: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:
c85f79211b94dea60184eff01d826496cb6d36e85cc92e3b632a4bb19b90db3d
Status:
ERROR
Block height:
39900387
Block id:
db7a86c2fc1e569d1e2caf410fed337a8143426446949b372a27f2354a7a8110
Timestamp:
Saturday 29 October 2022 at 01:55:30 UTC
()
Proposer:
Authorizers:
Gas used:
52