Looks like there are no records in the "server" table. Are you using default database?
I am using mysql default db yes, however I did overwrite with my own db structure additional (So you are right, I had emptied the server record).
Filled it up with entry and it works fine now :) Thank you.
Dear Anton,
I installed a fresh new instance of 3.2 on ubuntu, Similar to existing instance of mine no changes at all.
However the web part at first worked, but now is returning this error, please advice.
NullPointerException (JsonConverter:102 < ServerServlet:42 < *:30 < BaseServlet:53 < ...