Flow price: --
a604ecad76985c8840952af5f4efb21a73ad5bb4c68f98a10cbf2da11ecf8b09

Transaction

Hash: a604ecad76985c8840952af5f4efb21a73ad5bb4c68f98a10cbf2da11ecf8b09
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a604ecad76985c8840952af5f4efb21a73ad5bb4c68f98a10cbf2da11ecf8b09:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a604ecad76985c8840952af5f4efb21a73ad5bb4c68f98a10cbf2da11ecf8b09
Status:
ERROR
Block height:
40169441
Block id:
7f45aa67ac7131698d57955ffedc27eaa96463f7e22546798250561333bd6d5d
Timestamp:
Wednesday 2 November 2022 at 14:06:53 UTC
()
Proposer:
Authorizers:
Gas used:
46