If you the encoded files and need to recover your own source, contact ionCube support with proof of ownership. They may assist in limited recovery scenarios, but do not offer a public decoder.
If the script doesn’t run even with the Loader installed, the issue is likely:
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A: No. Projects like “DeIonCube” or “ioncube_decoder” on GitHub only work on ancient formats (ionCube v3–v5) and are broken for PHP 7.4 encoded files.
is a PHP encoder (and loader/decoder) used to protect PHP source code by compiling it into bytecode that can only be executed if the ionCube Loader (a PHP extension) is installed on the server.