APPLICATION ERROR #505

I am using MantisBT Core 2.5.1

When I attached the image in Description and submit the issue at that getting below error

Uploaded file could not be moved to the file storage directory. Directory either does not exist or not writable to webserver.

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Changes done in config_inc.php $g_custom_headers = array( "Content-Security-Policy: " . "frame-src http://gist-it.appshot.com/ 'self'; " . "img-src https://img.shields.io/ https://secure.gravatar.com/ 'self' blob: data:; " . "default-src 'self' ; " . "frame-ancestors 'self'; " . "font-src 'self'; " . "style-src 'self' 'unsafe-inline' ; " . "script-src https://cdnjs.cloudflare.com/ http://gist-it.appspot.com/ 'self' 'unsafe-inline'" );

Changes Done in bug_api.php

function bug_get_attachments( $p_bug_id ) {

    $p_bug_id = (int)$p_bug_id;

    global $g_cache_bug_attachments;
    if( isset( $g_cache_bug_attachments[$p_bug_id] ) ) {
        return $g_cache_bug_attachments[$p_bug_id];
    }

    if (function_exists('veditor_bug_get_attachments')) {
        return veditor_bug_get_attachments($p_bug_id);
    }

    db_param_push();
    $t_query = 'SELECT id, title, diskfile, filename, filesize, file_type, date_added, user_id
                        FROM {bug_file}
                        WHERE bug_id=' . db_param() . '
                        ORDER BY date_added';
    $t_db_result = db_query( $t_query, array( $p_bug_id ) );

    $t_result = array();

    while( $t_row = db_fetch_array( $t_db_result ) ) {
        $t_result[] = $t_row;
    }

    return $t_result;
}

on edit the issue getting below error

APPLICATION ERROR #401

Database query failed. Error received from database was #1054: Unknown column 'bugnote_id' in 'field list' for the query: SELECT id, title, diskfile, filename, filesize, file_type, date_added, user_id, bugnote_id
FROM mantis_bug_file_table
WHERE bug_id=? AND title <> 'Pasted by TinyMCE' ORDER BY date_added.

Please use the "Back" button in your web browser to return to the previous page. There you can correct whatever problems were identified in this error or select another action. You can also click an option from the menu bar to go directly to a new section.

mantisbt-plugins / VEditor

APPLICATION ERROR #505 #5