Flow price: --
f1e137d1b99beee78561f49839fb63bb6f04e7376ef058b1dc76b53c3c09dbf2

Transaction

Hash: f1e137d1b99beee78561f49839fb63bb6f04e7376ef058b1dc76b53c3c09dbf2
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f1e137d1b99beee78561f49839fb63bb6f04e7376ef058b1dc76b53c3c09dbf2:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f1e137d1b99beee78561f49839fb63bb6f04e7376ef058b1dc76b53c3c09dbf2
Status:
ERROR
Block height:
40056510
Block id:
5e3a40de6f60fb0e924b9babfc9460d75dd429376004a9bdc3d4f5b5023f75b0
Timestamp:
Monday 31 October 2022 at 16:24:43 UTC
()
Proposer:
Authorizers:
Gas used:
50