[OciXCrom]

Don't you mean Web Compiler 2013?

In 2020, people use AMXX 1.8.2, 1.9 and 1.10.
1.8.3 no longer exists, so what you have there is a very old 1.9 dev-build.
1.8.1 is unsupported for 15+ years now, so why is it even included?

Basically web compilers shouldn't even be a thing. You should always compile your plugin locally due to various reasons.