I am trying to make a project using 8051 and PIR sensor, and when I am simulating it I encountered a error stating
Invalid opcode Invalid opcode 0xFFE3 at PC=0x0004
So, when I checked the verify packaging in proteus it is showing me this:-

Packaging ‘NULL’ of device ‘LOGICSTATE’ not found.
Processed 4 devices and 4 packagings

1 errors found

So I think the problem is with the logicstate, I didn’t tried anything search the internet but didn’t find any solution.
Any help would be greatly appreciated