Flow price: --
d2274ea694b420eb6b19312a85ba0ddae6f80590bce627b73fbea69e70127ae8

Transaction

Hash: d2274ea694b420eb6b19312a85ba0ddae6f80590bce627b73fbea69e70127ae8
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> d2274ea694b420eb6b19312a85ba0ddae6f80590bce627b73fbea69e70127ae8:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
d2274ea694b420eb6b19312a85ba0ddae6f80590bce627b73fbea69e70127ae8
Status:
ERROR
Block height:
40133931
Block id:
b43e41bb88e117341300a620be4edf648e4a0bec8f8e338d398993e5dfb0a5a6
Timestamp:
Tuesday 1 November 2022 at 23:43:09 UTC
()
Proposer:
Authorizers:
Gas used:
66