The crash of digikam application occurred at a right click on a folder in an album and then export and export to Piwigo, a window opens with the message "Unable to connect to remote server" Piwigo ". URL http:/ws.php malformed.
Do you check your settings and try again? ", I click yes then a window appears to inform the server address, my username and my password, I click cancel. In the export window to "piwigo" I click close, it is at this point that digikam closes.

I use mysql as backend.