Proxy Error for Admin Panel

  • Apologies if I missed this in - errata - entirely possible

    After upgrade to 1.4.7 seeing this error when attempting to access control panel...

    does use panel redirect plugin - and using default 8443 port - was working previously

    going direct to works fine - So not urgent

    Proxy Error
    The proxy server could not handle the request GET /.

    Reason: Error during SSL Handshake with remote server
    Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.

    This only shows up on one server - older one - so I'm sure its something I did vs I-MSCP...
    but redirect doesn't work on my new one anyway

    Version 1.4.7
    Debian 8.9

    Edited 2 times, last by viper_iii: corrected - Seeing only on one install ().