Rocket chat login websocket error

[rahulcleankoding]

when logging with rocket chat websocket url it shows error but on rest api it works well

Firefox can’t establish a connection to the server at wss://164.52.202.86:3002/websocket. bundle.js:53164:16
Incoming data:
error
​
bubbles: false
​
cancelBubble: false
​
cancelable: false
​
composed: false
​
currentTarget: null
​
defaultPrevented: false
​
eventPhase: 0
​
explicitOriginalTarget: WebSocket { url: "wss://164.52.202.86:3002/websocket", readyState: 3, bufferedAmount: 0, … }
​
isTrusted: true
​
originalTarget: WebSocket { url: "wss://164.52.202.86:3002/websocket", readyState: 3, bufferedAmount: 0, … }
​
returnValue: true
​
srcElement: WebSocket { url: "wss://164.52.202.86:3002/websocket", readyState: 3, bufferedAmount: 0, … }
​
target: WebSocket { url: "wss://164.52.202.86:3002/websocket", readyState: 3, bufferedAmount: 0, … }
​
timeStamp: 3571
​
type: "error"

can you please able to solve it.