I deleted a site by mistake. Is it possible to “undo” this action ?
Create a new website
then in the database table piwik_site change the ID of the new website to the one you deleted
it should restore your reports
Thx for your quick answer !
Unfortunatly it didn’t work : (
A reason for this might be that in between I updated piwik from 2.14.3 to 2.15 .