Flow price: --
c2239a0a5cc3955fef664e6a2c45437dfc41f209604f0e8526f9fd43681b5e55

Transaction

Hash: c2239a0a5cc3955fef664e6a2c45437dfc41f209604f0e8526f9fd43681b5e55
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> c2239a0a5cc3955fef664e6a2c45437dfc41f209604f0e8526f9fd43681b5e55:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
c2239a0a5cc3955fef664e6a2c45437dfc41f209604f0e8526f9fd43681b5e55
Status:
ERROR
Block height:
40038648
Block id:
363b75609c76698e7e3fa17ce50e714f76a27dd0866fe148fdf98405a0d65a31
Timestamp:
Monday 31 October 2022 at 09:11:21 UTC
()
Proposer:
Authorizers:
Gas used:
50