Flow price: --
d7508ec0181c5a715453105275766f834ee733fecaf78fdaea7fcdbe760b8666

Transaction

Hash: d7508ec0181c5a715453105275766f834ee733fecaf78fdaea7fcdbe760b8666
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> d7508ec0181c5a715453105275766f834ee733fecaf78fdaea7fcdbe760b8666:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
d7508ec0181c5a715453105275766f834ee733fecaf78fdaea7fcdbe760b8666
Status:
ERROR
Block height:
39970014
Block id:
3e40d1e297dfcb534415c1a89d6976025c387bce15ee934ca4b7d228d125028c
Timestamp:
Sunday 30 October 2022 at 05:45:45 UTC
()
Proposer:
Authorizers:
Gas used:
50