Aircoder

Well, I finally found out, that in the database table bws_posts I just had to set a hook for A_I (auto increment) for the id.

That is the normal configuration, so I don’t know why this hook was missing in this database.

Well, if somebody has the same problem, this is the solution:
1. Activate php-debugging
2. Try to add a menu item
3. Look, which database table is shown in the sql error.
4. Activate A_I for the id of this table, normaly the first coll in the table.

Hmm, can’t I edit my posts?

Well, I have now changed the post with id 0 to 1 (there was no ID 1) and then I could add one menu item, but it was not shown in the menu structure.

It seems, that navbar elements are always created with id=0 and other entries empty or with default values.

So, I have noew information after I activated php debuging.

When I add something to the menu structure there is this error:

WordPress database error: [Duplicate entry ‘0’ for key ‘PRIMARY’]
INSERT INTO bws_posts (post_author, post_date, post_date_gmt, post_content, post_content_filtered, post_title, post_excerpt, post_status, post_type, comment_status, ping_status, post_password, post_name, to_ping, pinged, post_modified, post_modified_gmt, post_parent, menu_order, post_mime_type, guid) VALUES (3, ‘2015-07-26 15:47:29’, ‘0000-00-00 00:00:00’, ‘ ‘, ”, ”, ”, ‘draft’, ‘nav_menu_item’, ‘closed’, ‘open’, ”, ”, ”, ”, ‘2015-07-26 15:47:29’, ‘0000-00-00 00:00:00’, 0, 1, ”, ”)

Maybe there is css code, that can’t be overwritten with your changes.

You can use ftp:
https://www.webhostinghero.com/manually-disable-wordpress-plugins/

Just use css.
There are many ways, one is with negative margin:
.site-title {
margin-bottom: -25px;
}

I can only provide you with a dirty solution.
Just add this css code to your styling:
.flexslider {
display: none !important;
}

It will still be there but at least it wont take away space.

1. Do you want to change the name of the menu items? Then you have to change the article names.
2. You need access to your server, there you should find it.
3. Just login into your sever provider website and create a new ftp user.

Well, if your website url would work, we could help you better.

localhost only works for you.
you have to use your domain or if you havent one yet, the IP of the web server instead of localhost. So just replace localhost in the url.

I looked into it and there is a flexslider without content, so you just have to find and remove it.

It seams, that class-wp-list-table.php is suddenly missing.
you should deactivate the plugin wordpress-seo, that might fix it for now.