Disconnected from Nexus with strange message of "another player is logged in" - Paris server issue?

I was starting as Nexus node with T16 map and lot of nice pre/suffixes.

From 1st pack of mob, game start to lag and i was disconnected.
Trying to reconnect 1st time didn't work out due to lag or server issue
Trying to reconnect 2nd time , I had troubling message stating that another player was logged in ..which is pretty impossible as playing on steam wit multiple authentication way required...
Trying to reconnect 3rd time, I got in game to be back to hideout and nexus tagged as 'attempted'

This is extremely frustrating as finding nexus is time consuming but also as this is most likely related to EU server unstability.

With this, loosing currency, progress, time, ...just due to issues on server side isn't suitable

-> Fix it and compensate !