Flow price: --
e8f75dc871d777ae7d3ef4f507d14230eb3087b329250f24e384d9a0f79bde51

Transaction

Hash: e8f75dc871d777ae7d3ef4f507d14230eb3087b329250f24e384d9a0f79bde51
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> e8f75dc871d777ae7d3ef4f507d14230eb3087b329250f24e384d9a0f79bde51:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
e8f75dc871d777ae7d3ef4f507d14230eb3087b329250f24e384d9a0f79bde51
Status:
ERROR
Block height:
40160542
Block id:
4847c65c6d8183efba65e320be7ade3d5628d13b7a781e575eef14c1777874c1
Timestamp:
Wednesday 2 November 2022 at 10:31:42 UTC
()
Proposer:
Authorizers:
Gas used:
50