Flow price: --
c99e24f259e83375a88873442a0dd7dc7b410a0fd8858ed7f7f733e6eb624154

Transaction

Hash: c99e24f259e83375a88873442a0dd7dc7b410a0fd8858ed7f7f733e6eb624154
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> c99e24f259e83375a88873442a0dd7dc7b410a0fd8858ed7f7f733e6eb624154:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
c99e24f259e83375a88873442a0dd7dc7b410a0fd8858ed7f7f733e6eb624154
Status:
ERROR
Block height:
40114669
Block id:
f84ace6d357165fe1d336f4cdbeda065a391db0174d1729685d84aae9cb317cf
Timestamp:
Tuesday 1 November 2022 at 15:51:20 UTC
()
Proposer:
Authorizers:
Gas used:
46