Flow price: --
b974e534f2a3c8571a2270c871a6d537596bcae25563f64306cd2a9ecbc06044

Transaction

Hash: b974e534f2a3c8571a2270c871a6d537596bcae25563f64306cd2a9ecbc06044
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b974e534f2a3c8571a2270c871a6d537596bcae25563f64306cd2a9ecbc06044:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
b974e534f2a3c8571a2270c871a6d537596bcae25563f64306cd2a9ecbc06044
Status:
ERROR
Block height:
40042088
Block id:
cc86782bf45c313ca0e5e8fb5ef597f3dd05ca38f72ec6a5c002af3cdace2779
Timestamp:
Monday 31 October 2022 at 10:34:52 UTC
()
Proposer:
Authorizers:
Gas used:
63