Flow price: --
bc642a1e1310236764dcef6ee157b07cc0eef853ca50ff2c55b5ee8cad3f6f14

Transaction

Hash: bc642a1e1310236764dcef6ee157b07cc0eef853ca50ff2c55b5ee8cad3f6f14
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> bc642a1e1310236764dcef6ee157b07cc0eef853ca50ff2c55b5ee8cad3f6f14:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
bc642a1e1310236764dcef6ee157b07cc0eef853ca50ff2c55b5ee8cad3f6f14
Status:
ERROR
Block height:
39816942
Block id:
91cb09012043d8893744a0542874a5f4f3f255b3531768e5d0fd898176b3b780
Timestamp:
Thursday 27 October 2022 at 16:25:31 UTC
()
Proposer:
Authorizers:
Gas used:
47