The selected file has been unloaded ...

I'm working with Solidworks PDM and this varning pops up every time when I click any document in the vault tree. When I click "Yes", it doesn't help.

I once clicked "work offline" and that might cause this. How can I get back to "online" -mode?

I must be online while otherwise could not work at all. But maybe there is some setting that remains.

Anybody have a solution to this?

SW2016 SP4.0

Solidworks PDM 16.3 (B64)

SolidworksSolidworks Pdm enterprise Pdm