Theme override for categories and tags

For that you can use ap-top sidebar position

Error: Error You have an error in your SQL syntax;

I will check the issue and let you know.

What are the improvement to V1.4 of Askbug theme?

It was updated. Thanks

How to change URL structure?

I agree with @Terence. But if you want shorter permalink then there is an option in AnsPress option -> general

How to change URL structure?

Why shorter? Why not just use the SEO value wisely?

Redirect to login page when attempting to ask or answer a question

override ask.php and add this at top: if(!is_user_logged_in()){ auth_redirect(); }

Can I set a maximum of 200 reputation per day?

You can use reputation filter to check: function my_reputation_limit( $user_id, $action_id, $reputation, $type, $current_user_id ){ // Your logic } add_action('ap_added_reputation', 'my_reputation_limit', 10, 5);

[BUG] Anspress disables PAGING permalinks

This will not happen with RC version. Which version you are using.