Flow price: --
65213cf2a401c5d31de84adab2707658e36e71d1fe07f59fd5559543626665fc

Transaction

Hash: 65213cf2a401c5d31de84adab2707658e36e71d1fe07f59fd5559543626665fc
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 65213cf2a401c5d31de84adab2707658e36e71d1fe07f59fd5559543626665fc: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:
65213cf2a401c5d31de84adab2707658e36e71d1fe07f59fd5559543626665fc
Status:
ERROR
Block height:
39851400
Block id:
d717e02695a5caea7e99237696baeafb5b30738ed467bc0684676913ab9d2256
Timestamp:
Friday 28 October 2022 at 06:20:02 UTC
()
Proposer:
Authorizers:
Gas used:
46