emergency >>> error in system/seting after save

i get this error in version 1.5.5.1 after update when changing system/setings after presing save button
Notice: Undefined index: config_ftp_status in /home/admin/controller/setting/setting.php on line 1135

Warning: Cannot modify header information - headers already sent by (output started at /home/admin/index.php:85) in /home/vqmod/vqcache/vq2-system_engine_controller.php on line 28

Warning: Cannot modify header information - headers already sent by (output started at /home/admin/index.php:85) in /home/vqmod/vqcache/vq2-system_engine_controller.php on line 29
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and in menus have some words that is not rights to show , but showed some like this : undefined variable ....

you are using an out of date mod.

i removed all modules , still have message, 3 times give ctrl+F5 for refresh in admin panel , same error

same message have sometimes when save a product .
name of xml modules files , if is need can uploaded
admin_auto_titles_v1.1
Ajax-Enable-Disable-Product
Grid-View-By-Default-pmb-web-solutions
product_category_noemptymsg
subcat_images
vqmod_admin_filter_products_by_category
vqmod_opencart

hi, is here have some answer for this error already i try to ubdesrtand what is problem but still can not figuredout . ANY ANSWER ??