The compiler can't read the parameter value of the opcode
05B6, or the value is not a number.
This opcode references a chunk of debug data left by the game developers. This data is cached in
*.bin files in the Sanny Builder directory. It has no special meaning in runtime and is left in the disassembled code only to preserve one-to-one match with the original script.
Possible solutions: use the number produced by the disassembler, or delete this opcode from the script.