[Created by 3rd party extension] Errors and Notices on clean installation

Hello,

I have installed FLEXI CCK on a clean Joomla but i receive some errors and notices in frontend and backend.

frontend:
Notice: Array to string conversion in /www/htdocs/*xxxxxxx*/*xxxxxxxxxxxx*/libraries/joomla/filter/input.php on line 241
Notice: Array to string conversion in /www/htdocs/*xxxxxxx*/*xxxxxxxxxxxx*/libraries/joomla/filter/input.php on line 241
Notice: Array to string conversion in /www/htdocs/*xxxxxxx*/*xxxxxxxxxxxx*/libraries/joomla/filter/input.php on line 241

backend (e. g. categories menu)
Warning: Invalid argument supplied for foreach() in /www/htdocs/*xxxxxxx*/*xxxxxxxxxxxx*/components/com_flexicontent/helpers/permission.php on line 261

Also in Joomla Plugins there are some plugins shown as "PLG_CONTENT_FLEXIBREAK" for example.

What I did wrong?
I have re-installed it more than one time but nothing changes.

Could you please help me to fix this?

Thanks in forward

René

Hello

which view does it give the notices ?

e.g. category view
e.g. any view that contains FLEXIcontent universal module


- if you clean Joomla cache once does go away ?

Hello,

thanks for your reply.

The notices appear on all frontend pages.
e. g. domain.com/content_page
or domain.com/content_page/category_alias

Cleaning all caches (joomla and browser) doesn't have any effect.

Hello

these notices should not be there

you may send me admin Access to review this

Hello

they are created by 3rd party extension:
2J ToolBox

see here:
Notice: Array to string conversion in /www/htdocs/.../libraries/joomla/filter/input.php on line 241

Array ( [0] => scrollto*1001*css*2j.scrollto )

#0 JFilterInput->clean() called at [/www/htdocs/.../libraries/joomla/input/input.php:170]
#1 JInput->get() called at [/www/htdocs/.../libraries/joomla/cache/cache.php:748]
#2 JCache::makeId() called at [/www/htdocs/.../plugins/system/twojtoolbox/twojtoolbox.php:157]
#3 plgSystemTwojToolbox->onBeforeCompileHead()
#4 call_user_func_array() called at [/www/htdocs/.../libraries/joomla/event/event.php:69]
#5 JEvent->update() called at [/www/htdocs/.../libraries/joomla/event/dispatcher.php:160]
#6 JEventDispatcher->trigger() called at [/www/htdocs/.../libraries/joomla/application/base.php:106]
#7 JApplicationBase->triggerEvent() called at [/www/htdocs/.../libraries/joomla/document/html/renderer/head.php:57]
#8 JDocumentRendererHead->fetchHead() called at [/www/htdocs/.../libraries/joomla/document/html/renderer/head.php:34]
#9 JDocumentRendererHead->render() called at [/www/htdocs/.../libraries/joomla/document/html/html.php:411]
#10 JDocumentHTML->getBuffer() called at [/www/htdocs/.../libraries/joomla/document/html/html.php:697]
#11 JDocumentHTML->_renderTemplate() called at [/www/htdocs/.../libraries/joomla/document/html/html.php:477]
#12 JDocumentHTML->render() called at [/www/htdocs/.../libraries/cms/application/cms.php:1059]
#13 JApplicationCms->render() called at [/www/htdocs/.../libraries/cms/application/site.php:745]
#14 JApplicationSite->render() called at [/www/htdocs/.../libraries/cms/application/cms.php:258]
#15 JApplicationCms->execute() called at [/www/htdocs/.../index.php:45]