Flow price: --
9800f7e97822a0bd5f3c542e072cd6973a5aa0b9263cb5e3d10dab5e56762009

Transaction

Hash: 9800f7e97822a0bd5f3c542e072cd6973a5aa0b9263cb5e3d10dab5e56762009
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 9800f7e97822a0bd5f3c542e072cd6973a5aa0b9263cb5e3d10dab5e56762009:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
9800f7e97822a0bd5f3c542e072cd6973a5aa0b9263cb5e3d10dab5e56762009
Status:
ERROR
Block height:
40018136
Block id:
7717d738e0f98e0c415989fd6d8df8977d4270a7224985166c7afdd81bf88ee0
Timestamp:
Monday 31 October 2022 at 00:57:37 UTC
()
Proposer:
Authorizers:
Gas used:
47