Flow price: --
136461fe744e09d062eaafdc1305f9fd2da4d8c4f2e346ab9750918eb0290400

Transaction

Hash: 136461fe744e09d062eaafdc1305f9fd2da4d8c4f2e346ab9750918eb0290400
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 136461fe744e09d062eaafdc1305f9fd2da4d8c4f2e346ab9750918eb0290400:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
136461fe744e09d062eaafdc1305f9fd2da4d8c4f2e346ab9750918eb0290400
Status:
ERROR
Block height:
40121827
Block id:
409c7d306a73d8273db3f397bf8a18dda4b2da88692b050de7300ea3f4a19e57
Timestamp:
Tuesday 1 November 2022 at 18:45:30 UTC
()
Proposer:
Authorizers:
Gas used:
47