Flow price: --
db9ee8a179c00e5368d99e13fa4b530f3c23b21ac55fffc716b629691e46cea2

Transaction

Hash: db9ee8a179c00e5368d99e13fa4b530f3c23b21ac55fffc716b629691e46cea2
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> db9ee8a179c00e5368d99e13fa4b530f3c23b21ac55fffc716b629691e46cea2:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
db9ee8a179c00e5368d99e13fa4b530f3c23b21ac55fffc716b629691e46cea2
Status:
ERROR
Block height:
40159363
Block id:
343dbf45c968ff0ebe1aac3e4c20ffcf4c8781958660464e900531bd087a666d
Timestamp:
Wednesday 2 November 2022 at 10:03:01 UTC
()
Proposer:
Authorizers:
Gas used:
50