I am new to drupal. I installed 8.5. via web-download, transferred it via ftp and extracted the tar-file via ssh. I managed to setup a mysql database and install it with drupal. Wonderful. I can add users and remove them, have administrative privileges.
There is a header with Toolbar items, but then only a link list is shown - tested with firefox and chromium. I have access to themes, can even install new ones. I tried to install Admin toolbar - no change.
I installed a mysql-percona-server Server version: 5.7.20-19-log - Percona Server (GPL), Release '19', Revision '3c5d3e5d53c'
What am I doing wrong?