Latest image - Autojoin not working

[Fma965]

I'm not using your nginx package as i reverse proxy seperately, my config is as follow

     location /slweb {
         proxy_pass http://192.168.1.105:8088/slweb;
         proxy_http_version 1.1;
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection "upgrade";
     }         
     location /slserver {
         proxy_pass http://192.168.1.105:8089/slserver;
         proxy_http_version 1.1;
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection "upgrade";
     }         

everything works when i manually connect to the server but it doesn't automatically connect, chrome dev console shows the following error

app.3e70f29417df73517431.js:1 Uncaught (in promise) Error: Error: server error
    at d.<anonymous> (app.3e70f29417df73517431.js:1)
    at d.n.emit (vendor.d4c8217a8eb92ad12509.js:27)
    at d.emit (vendor.d4c8217a8eb92ad12509.js:35)
    at d.emitAll (vendor.d4c8217a8eb92ad12509.js:35)
    at l.<anonymous> (vendor.d4c8217a8eb92ad12509.js:35)
    at l.n.emit (vendor.d4c8217a8eb92ad12509.js:27)
    at l.onError (vendor.d4c8217a8eb92ad12509.js:1551)
    at l.onPacket (vendor.d4c8217a8eb92ad12509.js:1551)
    at c.<anonymous> (vendor.d4c8217a8eb92ad12509.js:1551)
    at c.n.emit (vendor.d4c8217a8eb92ad12509.js:27)

which points to

t._socket.on("connect_error", function(e) {
                                return i("SET_CONNECTED", !1),
                                i("SET_SERVER", null),
                                o(new Error(e))

in file /js/app.3e70f29417df73517431.js

[Starbix]

Hello Sorry for not answering earlier. I'm quite busy at the moment, but maybe @samcm can help!