updated my site to 2.11.5 I'm getting errors on the backend

Hello there.
After I updated my site to 2.11.5 I'm getting errors on the backend login site
http://www.
I don't understands much of coding, therefore I ask you guys.

this is one of them..
Warning: sprintf() [function.sprintf]: Too few arguments in /home/some/public_html/.com/contao/index.php on line 134

And another

Warning: Cannot modify header information - headers already sent by (output started at /home/some/public_html/.com/system/functions.php:161) in /home/kgp/public_html/.com/system/libraries/Template.php on line 286

Best regards
Karsten

I have the same error

Hello
Anyone an idea? of the problem I have in the backend part, on the login page for administrator.
Can see there also are another one who have same errors, as well


Warning: sprintf() [function.sprintf]: Too few arguments in /home/some/public_html/.com/contao/index.php on line 134

#0 [internal function]: __error(2, 'sprintf() [Bem??...', '
#0 [internal function]: __error(2, 'Cannot modify h...', '/home/kgp/publi...', 285, Array)
#1 /home/some/public_html/.com/system/libraries/Template.php(285): header('Vary: User-Agen...', false)
#2 /home/some/public_html/.com/system/modules/backend/BackendTemplate.php(161): Template->output()
#3 /home/some/public_html/.com/contao/index.php(136): BackendTemplate->output()
#4 /home/some/public_html/.com/contao/index.php(145): Index->run()
#5 {main}


Warning: Cannot modify header information - headers already sent by (output started at /home/some/public_html/.com/system/functions.php:161) in /home/some/public_html/.com/system/libraries/Template.php on line 286

Best Regards
Karsten

Using any modified be_ template? Modified the variable $GLOBALS['TL_LANG']['ERR']['ie6warning']? Try to reset this vaiable to its default. contao-2.11.5\system\modules\backend\languages\en\default .php

Every thing works fine after I moved my site another webserver/webhost..

Best Regards
Karsten