This file belongs to Cherno, not you, and he has confirmed that this is a very old and buggy file. The file does not belong to this person. People who want to buy should heed this warning.
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[Only registered and activated users can see links. Click Here To Register...] It sells a plugin that does not belong to it. Is this a legal situation? Also Cherno must have shown you the evidence. File right belongs to Cherno.