Flow price: --
750bfe3e1963941804fb9698cf699d453d43147723d8c80945b6b37bb99f27e7

Transaction

Hash: 750bfe3e1963941804fb9698cf699d453d43147723d8c80945b6b37bb99f27e7
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 750bfe3e1963941804fb9698cf699d453d43147723d8c80945b6b37bb99f27e7:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
750bfe3e1963941804fb9698cf699d453d43147723d8c80945b6b37bb99f27e7
Status:
ERROR
Block height:
40047769
Block id:
f46a82a79863f44bf54aa81edfa1deb6c9fa83e38207f34557eb15f0e6a39968
Timestamp:
Monday 31 October 2022 at 12:52:08 UTC
()
Proposer:
Authorizers:
Gas used:
48