Flow price: --
a295bb279f19e5ae8463c234e089a68c56e2443a9aa3b5e2ac57ea07dd99e777

Transaction

Hash: a295bb279f19e5ae8463c234e089a68c56e2443a9aa3b5e2ac57ea07dd99e777
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a295bb279f19e5ae8463c234e089a68c56e2443a9aa3b5e2ac57ea07dd99e777:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a295bb279f19e5ae8463c234e089a68c56e2443a9aa3b5e2ac57ea07dd99e777
Status:
ERROR
Block height:
40036913
Block id:
53b3c06d2f3e2161dce852f67c1fb92cb32a2da87919ca74a7b826b81f5bb74b
Timestamp:
Monday 31 October 2022 at 08:29:11 UTC
()
Proposer:
Authorizers:
Gas used:
46