Problem with dockerhub image

[MBARIMike]

My Docker builds began failing a few days ago with the error messages below. I notice that the image on dockerhub was updated about 4 days ago. Might this be a coincidence? I really don't know how to fix this. Please offer suggestions.

Step 1/16 : FROM pcic/geospatial-python
 ---> 8e26851956b9
Step 2/16 : MAINTAINER Mike McCann <mccann@xxx>
 ---> Using cache
 ---> fa2f1d823f19
Step 3/16 : ENV DEBIAN_FRONTEND noninteractive
 ---> Using cache
 ---> 04906b8a465f
Step 4/16 : RUN apt-get update &&     apt-get -qq -y install     firefox     freetds-dev     git     gmt     imagemagick     libncurses-dev     time     wget     xvfb
 ---> Running in b9b1ce0e5558

Ign:1 http://security.ubuntu.com/ubuntu cosmic-security InRelease
Err:2 http://security.ubuntu.com/ubuntu cosmic-security Release
  404  Not Found [IP: 91.189.91.23 80]
Ign:3 http://archive.ubuntu.com/ubuntu cosmic InRelease
Ign:4 http://archive.ubuntu.com/ubuntu cosmic-updates InRelease
Ign:5 http://archive.ubuntu.com/ubuntu cosmic-backports InRelease
Err:6 http://archive.ubuntu.com/ubuntu cosmic Release
  404  Not Found [IP: 91.189.88.162 80]
Err:7 http://archive.ubuntu.com/ubuntu cosmic-updates Release
  404  Not Found [IP: 91.189.88.162 80]
Err:8 http://archive.ubuntu.com/ubuntu cosmic-backports Release
  404  Not Found [IP: 91.189.88.162 80]
Reading package lists...
E: The repository 'http://security.ubuntu.com/ubuntu cosmic-security Release' does not have a Release file.
E: The repository 'http://archive.ubuntu.com/ubuntu cosmic Release' does not have a Release file.
E: The repository 'http://archive.ubuntu.com/ubuntu cosmic-updates Release' does not have a Release file.
E: The repository 'http://archive.ubuntu.com/ubuntu cosmic-backports Release' does not have a Release file.
ERROR: Service 'stoqs' failed to build: The command '/bin/sh -c apt-get update &&     apt-get -qq -y install     firefox     freetds-dev     git     gmt     imagemagick     libncurses-dev     time     wget     xvfb' returned a non-zero code: 100

[MBARIMike]

I inlined the Dockerfile commands into my Dockerfile replacing:

FROM ubuntu:18.10

with

FROM ubuntu:19.10

and had some success. I wonder if the problem is with ubuntu:18.10 ?