Flow price: --
c0d467c1398e439872e7e2c1dc23d439a0a6f2c41e652c907fc5b683905ea663

Transaction

Hash: c0d467c1398e439872e7e2c1dc23d439a0a6f2c41e652c907fc5b683905ea663
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> c0d467c1398e439872e7e2c1dc23d439a0a6f2c41e652c907fc5b683905ea663:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
c0d467c1398e439872e7e2c1dc23d439a0a6f2c41e652c907fc5b683905ea663
Status:
ERROR
Block height:
39843612
Block id:
0c56c05574650c87538c4f575feb329f397a899ff24fe8ba75ef561186610507
Timestamp:
Friday 28 October 2022 at 03:11:22 UTC
()
Proposer:
Authorizers:
Gas used:
49