how to clear login information?

unfortunately, it is still not working.
i have tried uninstall the plugin. and then reinstalled it again.
but it still refused to save the page.
please help. thank you so much.

Did you try to restart Opera? Which version are you using? Is there some error message in error console? (Open the console ctrl+shift+o, click on "clear" and then try to add a page - if something new appears, pleasy copy&paste it here...)

yes. i have restarted opera few times after uninstall and reinstall of the plugin. currently using opera 11.11.
ok. this time the '+' icon shows 'busy spinning arrows' and 'processing' and it stopped. i can see '1' on plugin icon. but when i clicked the icon, there is nothing saved. and '1' on that icon disappeared.
ok here's the log

[6/6/2011 09:06:38 PM] CSS - http://readitlaterlist.com/c/v2/interior.css
Linked-in stylesheet
Selector syntax error
Line 310:
*html #content form label { left: -145px; }
---------------------------^
[6/6/2011 09:06:38 PM] CSS - http://readitlaterlist.com/c/v2/interior.css
Linked-in stylesheet
Selector syntax error
Line 423:
*html .screens span { margin: 0px 6px 0px 6px; }
---------------------^
[6/6/2011 09:06:38 PM] JavaScript
Event thread: message
request to fill http://readitlaterlist.com/l
[6/6/2011 09:06:40 PM] JavaScript
Event thread: message
num: 0
[6/6/2011 09:06:40 PM] JavaScript
Event thread: message
num: 0
[6/6/2011 09:06:43 PM] JavaScript - http://readitlaterlist.com/unread
Inline script thread
Uncaught exception: TypeError: Cannot convert '$('options')' to object
Error thrown at line 2, column 0 in http://readitlaterlist.com/j/list.js:
$('options').innerHTML = '\
[6/6/2011 09:06:43 PM] JavaScript - http://readitlaterlist.com/unread
Inline script thread
Uncaught exception: TypeError: Cannot convert '$('pages')' to object
Error thrown at line 5, column 0 in http://readitlaterlist.com/unread:
$('pages').innerHTML += 'page: \
[6/6/2011 09:06:44 PM] CSS - http://readitlaterlist.com/c/v2/list.css
Linked-in stylesheet
Selector syntax error
Line 223:
{
-^
[6/6/2011 09:06:44 PM] CSS - http://readitlaterlist.com/c/v2/list.css
Linked-in stylesheet
Selector syntax error
Line 292:
{
-^
[6/6/2011 09:06:45 PM] JavaScript
Event thread: message
request to fill http://readitlaterlist.com/unread
[6/6/2011 09:06:59 PM] CSS - http://readitlaterlist.com/c/v2/interior.css
Linked-in stylesheet
Selector syntax error
Line 310:
*html #content form label { left: -145px; }
---------------------------^
[6/6/2011 09:06:59 PM] CSS - http://readitlaterlist.com/c/v2/interior.css
Linked-in stylesheet
Selector syntax error
Line 423:
*html .screens span { margin: 0px 6px 0px 6px; }
---------------------^
[6/6/2011 09:07:00 PM] JavaScript
Event thread: message
request to fill http://readitlaterlist.com/

OK, there is no message regarding the plugin, only errors from read it later page. Did you try some other page? Maybe it is problem only on one web page...

yes. i've tried with other pages. but still not working.
it's ok. i think i have to disable this plugin for the time being.
anyway, thank a lot for your help reg this matter.