I have the same problem - if I follow your solution destroying the actual container and install the one from https://github.com/Alfresco/acs-community-deployment/issues/99 the Alfresco is totally different as is working on port 80 not 8080 like the actual one and I'm not able to log in with admin/admin
I kept circling arround for one week - I have two VM's -
1. The first one installed with the instructions from https://www.alfresco.com/thank-you/thank-you-downloading-alfresco-community-edition and the docker-compose file from https://www.alfresco.com/system/files_force/docker-compose-6.2-ga.zip?download=1 - this VM is running on 8080 and I have the error from above
2. The second one installed from here : https://github.com/Alfresco/alfresco-docker-installer which runs on port 80 but I'm unable to login with admin/admin at all
Please advice - I need to test a valid Alfresco in order to obtain the budgeting for the payd one - but still I'm unable to provide a functional copy
all installed on Debian 9.4 !