Flow price: --
878a0b1093786f13eba921b241ffafd0fd68faf129001d0b161b60699e77b61b

Transaction

Hash: 878a0b1093786f13eba921b241ffafd0fd68faf129001d0b161b60699e77b61b
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 878a0b1093786f13eba921b241ffafd0fd68faf129001d0b161b60699e77b61b: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:
878a0b1093786f13eba921b241ffafd0fd68faf129001d0b161b60699e77b61b
Status:
ERROR
Block height:
40017144
Block id:
15e47120b1359754a6116b958c36e32f1fabe1ef7d43ed45ba73aba5643ab10d
Timestamp:
Monday 31 October 2022 at 00:33:45 UTC
()
Proposer:
Authorizers:
Gas used:
47