Flow price: --
f8f9f7ee0d6258de83bc265eb9135d00dab5d1a1b4b256fe31cf6a4c383ee7f6

Transaction

Hash: f8f9f7ee0d6258de83bc265eb9135d00dab5d1a1b4b256fe31cf6a4c383ee7f6
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f8f9f7ee0d6258de83bc265eb9135d00dab5d1a1b4b256fe31cf6a4c383ee7f6:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f8f9f7ee0d6258de83bc265eb9135d00dab5d1a1b4b256fe31cf6a4c383ee7f6
Status:
ERROR
Block height:
39976414
Block id:
023126bdaf667b2738bc8c502d05858c1014b9cecf2ce99e0cb64f5c7a0c98b0
Timestamp:
Sunday 30 October 2022 at 08:20:06 UTC
()
Proposer:
Authorizers:
Gas used:
47