Flow price: --
19b4263961fa5f798f75e67423b1aa10af8b2c2d6fd1f17138f37dc03310e998

Transaction

Hash: 19b4263961fa5f798f75e67423b1aa10af8b2c2d6fd1f17138f37dc03310e998
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 19b4263961fa5f798f75e67423b1aa10af8b2c2d6fd1f17138f37dc03310e998:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
19b4263961fa5f798f75e67423b1aa10af8b2c2d6fd1f17138f37dc03310e998
Status:
ERROR
Block height:
39888128
Block id:
d6d455092092992a5a57e02bb04d15273c85c3e0519e4445a6fd68d16445c2cc
Timestamp:
Friday 28 October 2022 at 21:03:25 UTC
()
Proposer:
Authorizers:
Gas used:
47