Flow price: --
c737191ea482cdb2300fe8e2d84d01eee3e287b2f4987a6852a96a79cc61055c

Transaction

Hash: c737191ea482cdb2300fe8e2d84d01eee3e287b2f4987a6852a96a79cc61055c
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> c737191ea482cdb2300fe8e2d84d01eee3e287b2f4987a6852a96a79cc61055c: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:
c737191ea482cdb2300fe8e2d84d01eee3e287b2f4987a6852a96a79cc61055c
Status:
ERROR
Block height:
39864189
Block id:
f17663c55c2c5ba15790ddc713a790aa27803892da9369c1ef2f7656d4c70073
Timestamp:
Friday 28 October 2022 at 11:30:16 UTC
()
Proposer:
Authorizers:
Gas used:
47