Exception: unsupported instruction: TFORLOOP

[xNxExOx]

gdsautogenerated.zip
Hello, I tried to decompile this file, and got this error:

Traceback (most recent call last):
  File "D:\py\LuaDecompy\main.py", line 14, in <module>
    lp = lparser.LuaDecomp(chunk)
         ^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\py\LuaDecompy\lparser.py", line 78, in __init__
    self.parseInstr()
  File "D:\py\LuaDecompy\lparser.py", line 446, in parseInstr
    raise Exception("unsupported instruction: %s" % instr.toString())
Exception: unsupported instruction:   TFORLOOP :      4      0      2

Can you tell me, if the version of LUA was somehow modified, or if it is issue in your decompiler?
Thanks in advance for your answer.