Flow price: --
170e2640d31e3822818c5ccf526bdb8903db53f29d7766fe323a197b6c14ef13

Transaction

Hash: 170e2640d31e3822818c5ccf526bdb8903db53f29d7766fe323a197b6c14ef13
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 170e2640d31e3822818c5ccf526bdb8903db53f29d7766fe323a197b6c14ef13:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
170e2640d31e3822818c5ccf526bdb8903db53f29d7766fe323a197b6c14ef13
Status:
ERROR
Block height:
39926916
Block id:
011585af69d1cb633f886ca719ea4ef8f3eea0b5b87d95cdeb0d0345cc3aca5a
Timestamp:
Saturday 29 October 2022 at 12:34:13 UTC
()
Proposer:
Authorizers:
Gas used:
47