Writing /opt/tonido/public_html/tonido.com/public/communitywiki/data/cache/9/994bf949e7188612a2f22db7d0f2c5be.i failed
Unable to save cache file. Hint: disk full; file permissions; safe_mode setting.
Writing /opt/tonido/public_html/tonido.com/public/communitywiki/data/cache/9/994bf949e7188612a2f22db7d0f2c5be.metadata failed
Writing /opt/tonido/public_html/tonido.com/public/communitywiki/data/cache/9/994bf949e7188612a2f22db7d0f2c5be.i failed
Unable to save cache file. Hint: disk full; file permissions; safe_mode setting.
Writing /opt/tonido/public_html/tonido.com/public/communitywiki/data/cache/9/994bf949e7188612a2f22db7d0f2c5be.xhtml failed

Using the php Sample as a basis you can copy it and create your own plugin.