Flow price: --
5829e70e647e67bb91f40b4f0d98c918e16770ac950e2f042ebf05f31761b202

Transaction

Hash: 5829e70e647e67bb91f40b4f0d98c918e16770ac950e2f042ebf05f31761b202
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 5829e70e647e67bb91f40b4f0d98c918e16770ac950e2f042ebf05f31761b202:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
5829e70e647e67bb91f40b4f0d98c918e16770ac950e2f042ebf05f31761b202
Status:
ERROR
Block height:
40110960
Block id:
22a867c00c7147b5a0acbdec50a86db7a5a08888f547b624ae0766c9054d6c44
Timestamp:
Tuesday 1 November 2022 at 14:21:17 UTC
()
Proposer:
Authorizers:
Gas used:
47