Help to get pgadmin4 running agains on Ubuntu v4.15

Hi,

I updated recently pgamin4 to version 4.15, using the
http://apt.postgresql.org/pub/repos/apt repository.

My pgadmin4 no longer runs. I get the following error on
/var/log&apache2/error.log:

[Tue Dec 03 22:25:57.744118 2019] [wsgi:error] [pid 21855] [remote
192.168.1.24:40244] mod_wsgi (pid=21855): Exception occurred processing
WSGI script '/usr/share/pgadmin4/web/pgAdmin4.wsgi'.
[Tue Dec 03 22:25:57.744337 2019] [wsgi:error] [pid 21855] [remote
192.168.1.24:40244] Traceback (most recent call last):
[Tue Dec 03 22:25:57.744387 2019] [wsgi:error] [pid 21855] [remote
192.168.1.24:40244]   File
"/usr/lib/python3/dist-packages/flask/app.py", line 1997, in __call__
[Tue Dec 03 22:25:57.744392 2019] [wsgi:error] [pid 21855] [remote
192.168.1.24:40244]     return self.wsgi_app(environ, start_response)
[Tue Dec 03 22:25:57.744399 2019] [wsgi:error] [pid 21855] [remote
192.168.1.24:40244]   File "/usr/share/pgadmin4/web/pgAdmin4.py", line
95, in __call__
[Tue Dec 03 22:25:57.744402 2019] [wsgi:error] [pid 21855] [remote
192.168.1.24:40244]     return self.app(environ, start_response)
[Tue Dec 03 22:25:57.744421 2019] [wsgi:error] [pid 21855] [remote
192.168.1.24:40244] AttributeError: 'ReverseProxied' object has no
attribute 'app'

It seems something related with flask, but I have no clue. Is this a
local issue or did someelse already experienced the same problem?

Thanks in advance,

Jorge Gustavo

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