(22:03:11) | Could not check for update to Compiler.x86_x64
(22:03:11) | The request timed out
(22:03:11) | Exception while starting compiler version Unknown: (Win32Exception: ApplicationName='/data2/Rust_mod/Compiler.x86_x64', CommandLine='/service /logPath:/data2/Rust_mod/oxide/logs', CurrentDirectory='', Native error= Cannot find the specified file)
at System.Diagnostics.Process.StartWithCreateProcess (System.Diagnostics.ProcessStartInfo startInfo) [0x002dc] in <0079a30f96a047348857e1cecc6c638a>:0
at System.Diagnostics.Process.Start () [0x0003a] in <0079a30f96a047348857e1cecc6c638a>:0
at (wrapper remoting-invoke-with-check) System.Diagnostics.Process.Start()
at Oxide.Plugins.PluginCompiler.CheckCompiler () [0x001f3] in <33f7c42a56934dae8ec04b11017dce31>:0
(22:03:11) | Compiler may not be set as executable; chmod +x or 0744/0755 required
(22:03:11) | Win32 NativeErrorCode: 2 ErrorCode: -2147467259 HelpLink:
(22:03:11) | Ignored unexpected plugin compilation failure: HWTeleportation
(22:03:11) | Error while compiling: compiler version Unknown couldn't be started

Unable to load when loading plugin, compile error
I am newbie, how should I solve it, thx (my English is not good)
Using CentOS7.4

The error would imply that the compiler doesn't exist as it could not be downloaded. Please check to make sure nothing is blocking connections to the server or internet, otherwise you can try downloading manually for now: https://umod.org/community/general-support/10494-manual-download-for-compiler?page=1#post-2