'Forbidden Access' error and 'tag in POST' error while publishing / editing article in Joomla

Forbidden Access error, and 'tag in POST' error? while posting in http://www.doh.gov.ph/bihc_doh

This has not occurred before: frontend editing saves are rejected with a message 'Forbidden Access (flooding)' - or 'Forbidden Access (tag in POST)'. This is with Joomla 1.0.12 and 1.0.13 versions.

This is either (a) a Joomla built-in security block being triggered, or (b) more likely a server setting perhaps. I'm seeing it especially on Apache 1.1.3x / Unix servers.

If you Save and edit with a few words of plain text, it seems to be OK; but a fair-sized page with plenty of mixed content gets blocked - probably because of the number of HTTP requests at one time?

Of course, it means that frontend editing is impossible, which makes any kind of community use out of the question. Thought this was a joomla issue or server setting, but obviously an extension issue.

Solution:

Turn off security features of SH404SEF, that is of course assuming you have had the extension installed (being the issue here) :D

"Make sure you have a working image toolkit installed and enabled" in Drupal

Having installed image module for Drupal, I began having this error in admin pages:

"Make sure you have a working image toolkit installed and enabled"

it says "for more information see settings page"

Solution would be to enable the ImageMagick toolkit in the settings page (don't be surprised if this is not available in the drupal forum before):

Go to settings > image handling > enable imagemagick or gd2

afterwhich the image handling option will not be made available anymore (not viewable from the settings page)

See other suggestions here from the drupal forum
- http://drupal.org/node/60927