When I click on the link to install new sidebar plugins this is what I get:
Sidebar Plugins
Trying to open URL package_sidebar_nl.xml...
Fetched 90393 bytes from already existing file on your server. Saving file as /var/www/html/templates_c/package_sidebar_nl.xml...
I do not have any problems to install event plugins.
Are you using Serendipity 1.1? Which Mirror did you configure in the spartacus plugin for filedownloads?
Do you know if you ever could install a sidebar plugin, or was it never possible?
Maybe you could disable the spartacus plugin and see if that changes things. It might be there's a corrupt plugin that blocks things.
The strange thing is that event plugins work...hm...
Regards,
Garvin
# Garvin Hicking (s9y Developer)
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If you disable spartacus, you should no longer see that "downloading XML..." stuff, right?
Then the only reasonable explanation is that one plugin you have on your server contains a fatal PHP parse error and your host is configured to not display PHP errors.
Can you ask your provider to check the PHP error log, or enable showing PHP errors to you? Or maye you yourself have access to the error logs?
Regards,
Garvin
# Garvin Hicking (s9y Developer)
# Did I help you? Consider making me happy: http://wishes.garv.in/
# or use my PayPal account "paypal {at} supergarv (dot) de"
# My "other" hobby: http://flickr.garv.in/