Flow price: --
3d218e90a541cbe983fd4ce875e7a927efb1932144a1a8c5ba15a41094ba350e

Transaction

Hash: 3d218e90a541cbe983fd4ce875e7a927efb1932144a1a8c5ba15a41094ba350e
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 3d218e90a541cbe983fd4ce875e7a927efb1932144a1a8c5ba15a41094ba350e: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:
3d218e90a541cbe983fd4ce875e7a927efb1932144a1a8c5ba15a41094ba350e
Status:
ERROR
Block height:
39976801
Block id:
f4981616275bc9331cec6bbe65ddbafeb23897e2e2542ba964eaef1109cb1b03
Timestamp:
Sunday 30 October 2022 at 08:29:12 UTC
()
Proposer:
Authorizers:
Gas used:
46