How to fix this: Warning: Illegal string offset 'name' ?

I am getting the following warning when activating my theme.

Warning: Illegal string offset ‘name’ in C:\xampp\htdocs\wahkon\wp-content\themes\invisi\inc\theme-settings.php on line 12

here is the code from the theme-settings.php

function populate_theme_options(){
    GLOBAL $tabs,$wp_version;
    $pages = @get_all_pages();
    foreach ($tabs as $r1) {
        foreach ($r1 as $r2) {
            if (count($r2) > 0) {
                foreach ((array)$r2 as $r3) {
                    if(@$r3['value'] != '' && strlen($r3['name']) != 1 && $r3['type'] != 'select' && $r3['type'] != 'radio' && $r3['type'] != 'checkbox'){
                        if ( version_compare( $wp_version, '3.4', '>=' ) ) {update_option(wp_get_theme().'_'.$r1['id'].'_'.$r3['name'], $r3['value']);}else{update_option(get_current_theme().'_'.$r1['id'].'_'.$r3['name'], $r3['value']);}
                    }
                }
            }
        }
    }
}

although the theme is still activated I am unable to load images to any posts or pages because the image uploader goes blank, or If I get past that point as the image uploads to the post or as the “featured image” I get the white screen of death.

Another problem is some of the buttons in admin wont work, such as creating a category, the nothing happens however, if I refresh the page the category is created.

Any help would be greatly appreciated.