Flow price: --
8f215ada8f08122aa64a4d213170e845e1d174d5cdd5deb386a49b71a9ab40f9

Transaction

Hash: 8f215ada8f08122aa64a4d213170e845e1d174d5cdd5deb386a49b71a9ab40f9
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 8f215ada8f08122aa64a4d213170e845e1d174d5cdd5deb386a49b71a9ab40f9:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
8f215ada8f08122aa64a4d213170e845e1d174d5cdd5deb386a49b71a9ab40f9
Status:
ERROR
Block height:
39990341
Block id:
2cd9209c7857d435d13ea1c0165067c23c3d617e45dcc8b551f57cd14dee8ac9
Timestamp:
Sunday 30 October 2022 at 13:53:51 UTC
()
Proposer:
Authorizers:
Gas used:
48