Ask the owner of the indicator to give source code to you.
Decompiled code is stolen code. Either you are a thief, a fence, or the receiver of stolen (intellectual) property. Either way we will not be an accomplice after the fact to theft. See also https://www.mql5.com/en/forum/134317#comment_3411571
If you post decompiled code again, you will likely be banned.
Don't tell us you found it on the 'net: if someone stole your bank details and uploaded them on to the internet, is it OK for everyone to use them because "someone uploaded it, I don't know why I can't use that"?
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