Unable to start server after Jupyterhub upgrade to 0.8.1 - jupyter-notebook

Question

I have recently upgraded jupyterhub from 0.7 to 0.8.1. After upgrade, i have upgraded the sqllite database as well as mentioned in the upgrade documents. I'm able to start the jupyterhub service but after login, i'm unable to start the server with below error. My server is AD integrated for login. This was working perfectly before upgrade. Any idea how this can be resolved?
[I 2019-03-14 15:21:57.698 JupyterHub base:346] User logged in: test
[E 2019-03-14 15:21:57.746 JupyterHub user:427] Unhandled error starting test's server: 'getpwnam(): name not found: test'
[E 2019-03-14 15:21:57.755 JupyterHub web:1590] Uncaught exception POST /hub/login?next= (192.168.0.24)
HTTPServerRequest(protocol='https', host='jupyter2.testing.com', method='POST', uri='/hub/login?next=', version='HTTP/1.1', remote_ip='192.168.0.24', headers={'Content-Type': 'application/x-www-form-urlencoded', 'Accept-Language': 'en-GB,en-US;q=0.9,en;q=0.8', 'Cookie': '_xsrf=2|e7c2dfb6|2e7d6377e8446061ff8be0e64f86210f|1551259887', 'Upgrade-Insecure-Requests': '1', 'Host': 'jupyter2.testing.com', 'X-Forwarded-Proto': 'https', 'Origin': 'https://jupyter2.testing.com', 'X-Real-Ip': '192.168.0.24', 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8', 'Accept-Encoding': 'gzip, deflate, br', 'Content-Length': '42', 'Cache-Control': 'max-age=0', 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.80 Safari/537.36', 'X-Forwarded-Port': '443', 'Referer': 'https://jupyter2.testing.com/hub/login', 'X-Forwarded-Host': 'jupyter2.testing.com', 'X-Forwarded-For': '192.168.0.24,127.0.0.1', 'Connection': 'close', 'X-Nginx-Proxy': 'true'})
Traceback (most recent call last):
File "/usr/local/python3/lib/python3.4/site-packages/tornado/web.py", line 1511, in _execute
result = yield result
File "/usr/local/python3/lib/python3.4/site-packages/jupyterhub/handlers/login.py", line 94, in post
yield self.spawn_single_user(user)
File "/usr/local/python3/lib/python3.4/site-packages/jupyterhub/handlers/base.py", line 475, in spawn_single_user
yield gen.with_timeout(timedelta(seconds=self.slow_spawn_timeout), finish_spawn_future)
File "/usr/local/python3/lib/python3.4/site-packages/jupyterhub/handlers/base.py", line 445, in finish_user_spawn
yield spawn_future
File "/usr/local/python3/lib/python3.4/site-packages/jupyterhub/user.py", line 439, in spawn
raise e
File "/usr/local/python3/lib/python3.4/site-packages/jupyterhub/user.py", line 378, in spawn
ip_port = yield gen.with_timeout(timedelta(seconds=spawner.start_timeout), f)
File "/usr/local/python3/lib/python3.4/site-packages/jupyterhub/spawner.py", line 968, in start
env = self.get_env()
File "/usr/local/python3/lib/python3.4/site-packages/jupyterhub/spawner.py", line 960, in get_env
env = self.user_env(env)
File "/usr/local/python3/lib/python3.4/site-packages/jupyterhub/spawner.py", line 947, in user_env
home = pwd.getpwnam(self.user.name).pw_dir
KeyError: 'getpwnam(): name not found: test'
[E 2019-03-14 15:21:57.756 JupyterHub log:114] {
"Content-Type": "application/x-www-form-urlencoded",
"Accept-Language": "en-GB,en-US;q=0.9,en;q=0.8",
"Cookie": "_xsrf=2|e7c2dfb6|2e7d6377e8446061ff8be0e64f86210f|1551259887",
"Upgrade-Insecure-Requests": "1",
"Host": "jupyter2.testing.com",
"X-Forwarded-Proto": "https",
"Origin": "https://jupyter2.testing.com",
"X-Real-Ip": "192.168.0.24",
"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8",
"Accept-Encoding": "gzip, deflate, br",
"Content-Length": "42",
"Cache-Control": "max-age=0",
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.80 Safari/537.36",
"X-Forwarded-Port": "443",
"Referer": "https://jupyter2.testing.com/hub/login",
"X-Forwarded-Host": "jupyter2.testing.com",
"X-Forwarded-For": "192.168.0.24,127.0.0.1",
"Connection": "close",
"X-Nginx-Proxy": "true"
}
[E 2019-03-14 15:21:57.757 JupyterHub log:122] 500 POST /hub/login?next= (#192.168.0.24) 199.65ms