Flow price: --
4a7c4d8035268a4e1fdebbe8ee3f24c74b84d7644bf7e5d75a58a2fc318a4fd3

Transaction

Hash: 4a7c4d8035268a4e1fdebbe8ee3f24c74b84d7644bf7e5d75a58a2fc318a4fd3
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 4a7c4d8035268a4e1fdebbe8ee3f24c74b84d7644bf7e5d75a58a2fc318a4fd3:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
4a7c4d8035268a4e1fdebbe8ee3f24c74b84d7644bf7e5d75a58a2fc318a4fd3
Status:
ERROR
Block height:
39921516
Block id:
69640deffbe175a452941c25f2fcd09c627b7cc5c4ac6e48b576e3f456ce4fb6
Timestamp:
Saturday 29 October 2022 at 10:23:22 UTC
()
Proposer:
Authorizers:
Gas used:
48