Thread:Extension talk:Scribunto/Lua not executable

So I'm getting the very common error "The lua binary (/home/u249147388/public_html/testing/extensions/Scribunto/engines/LuaStandalone/binaries/lua5_1_5_linux_64_generic/lua) is not executable" but I did mark the executable as executable (with chmod code 755). For some reason the error still keeps coming up when the executable does have the executable flag. Any ideas? Could it be an annoying noexec flag somewhere? I'm running MediaWiki version 1.22.7 and Scribunto for MW 1.22. Thanks.