Flow price: --
f111ffb640b0e4fc779271e25b99cf750d61a10c335ce44e6bf2483e36121916

Transaction

Hash: f111ffb640b0e4fc779271e25b99cf750d61a10c335ce44e6bf2483e36121916
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f111ffb640b0e4fc779271e25b99cf750d61a10c335ce44e6bf2483e36121916:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f111ffb640b0e4fc779271e25b99cf750d61a10c335ce44e6bf2483e36121916
Status:
ERROR
Block height:
40129041
Block id:
6d0f8d5aa9ccda1b640aa2ac072bc0033a5f79c17ae067cf367de187d2354672
Timestamp:
Tuesday 1 November 2022 at 21:42:33 UTC
()
Proposer:
Authorizers:
Gas used:
47