Flow price: --
fbef39616c42f6af894e428757af38ecb2c3065686d7b3dbf5f9ea5b7a15b0b2

Transaction

Hash: fbef39616c42f6af894e428757af38ecb2c3065686d7b3dbf5f9ea5b7a15b0b2
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> fbef39616c42f6af894e428757af38ecb2c3065686d7b3dbf5f9ea5b7a15b0b2:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
fbef39616c42f6af894e428757af38ecb2c3065686d7b3dbf5f9ea5b7a15b0b2
Status:
ERROR
Block height:
39974875
Block id:
3e3441d7f049d3a340427f42eda94b5ebcac70f34bb29127a118d6d8842a0207
Timestamp:
Sunday 30 October 2022 at 07:43:12 UTC
()
Proposer:
Authorizers:
Gas used:
48