Flow price: --
bc968141d4ecb39a40566c68ab999f2dc68f64009e9a761c301b0eece81b97a3

Transaction

Hash: bc968141d4ecb39a40566c68ab999f2dc68f64009e9a761c301b0eece81b97a3
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> bc968141d4ecb39a40566c68ab999f2dc68f64009e9a761c301b0eece81b97a3:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
bc968141d4ecb39a40566c68ab999f2dc68f64009e9a761c301b0eece81b97a3
Status:
ERROR
Block height:
40054717
Block id:
3539c968e3a87bf947f321691665467092932050583e8fce1f615a10212cdcd8
Timestamp:
Monday 31 October 2022 at 15:40:45 UTC
()
Proposer:
Authorizers:
Gas used:
50