Flow price: --
efcb943bda3702a10ddb3e1c93557f3f522e7ea67adc9f61aa37179a3f238724

Transaction

Hash: efcb943bda3702a10ddb3e1c93557f3f522e7ea67adc9f61aa37179a3f238724
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> efcb943bda3702a10ddb3e1c93557f3f522e7ea67adc9f61aa37179a3f238724:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
efcb943bda3702a10ddb3e1c93557f3f522e7ea67adc9f61aa37179a3f238724
Status:
ERROR
Block height:
40121354
Block id:
1a834f1cbcb3bb72724f21f881cbcc9ba24b83ea983c23653c6507191af0867a
Timestamp:
Tuesday 1 November 2022 at 18:33:48 UTC
()
Proposer:
Authorizers:
Gas used:
46