Flow price: --
89050d7118c45d274fe1d971c4ad83c8e6a59c7a1a0d2c5b709bf35bb3ff9897

Transaction

Hash: 89050d7118c45d274fe1d971c4ad83c8e6a59c7a1a0d2c5b709bf35bb3ff9897
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 89050d7118c45d274fe1d971c4ad83c8e6a59c7a1a0d2c5b709bf35bb3ff9897:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
89050d7118c45d274fe1d971c4ad83c8e6a59c7a1a0d2c5b709bf35bb3ff9897
Status:
ERROR
Block height:
40164384
Block id:
3a675d72efee83b26394b6c7f5034278daec693e930904eb20529abcba53b54a
Timestamp:
Wednesday 2 November 2022 at 12:04:53 UTC
()
Proposer:
Authorizers:
Gas used:
74