ERROR TypeError: Cannot read property 'pipe' of undefined

Question

I have an existing project using angular 6. I have implemented angular universal on my existing project.

Now when I run build:ssr and run node web/server.js. it gives me: Node server listening on http://localhost:4000

but when I open a browser and type http://localhost:4000 in that browser I receive this error.

ERROR TypeError: Cannot read property 'pipe' of undefined
    at AuthInterceptor.addToken (/home/razmjo/workstation/jobsaf-website/web/server.js:362410:13)
    at AuthInterceptor.request (/home/razmjo/workstation/jobsaf-website/web/server.js:362384:21)
    at AuthInterceptor.processIntercept (/home/razmjo/workstation/jobsaf-website/web/server.js:362377:21)
    at AuthInterceptor.intercept (/home/razmjo/workstation/jobsaf-website/web/server.js:362372:21)
    . 
    .
    . 
    .
    at ZoneTask.invokeTask (/home/razmjo/workstation/jobsaf-website/web/server.js:647:21)
    at Server.ZoneTask.invoke (/home/razmjo/workstation/jobsaf-website/web/server.js:632:48)
    at Server.emit (events.js:182:13)
    at parserOnIncoming (_http_server.js:658:12)

Note: I have used ngx-auth package for my authentication purpose, and this error come from that package.

Thanks in advance.