Lost My GD Welcome Widget After Upgrading To Avada

Do you mean welcome login widget? that is part of the GDF theme, you can however copy this code to your child theme functions to get it back though you might have to style it yourself.

// =============================== Login Widget ======================================
class gdf_welcome_loginwidget extends WP_Widget {
	function gdf_welcome_loginwidget() {
	//Constructor
		$widget_ops = array('classname' => 'Loginbox', 'description' => 'Welcome Login Widget' );		
		$this->WP_Widget('widget_gdf_welcome_loginwidget', 'GDF > Welcome Login', $widget_ops);
	}
	function widget($args, $instance) {
	// prints the widget
		extract($args, EXTR_SKIP);
		$title = empty($instance['title']) ? ' ' : apply_filters('widget_title', $instance['title']);
		 					
		global $current_user;
		if (function_exists('geodir_getlink')) {
		$login_url = geodir_getlink(home_url(),array('geodir_signup'=>'true'),false);
		$logout_url = wp_logout_url( home_url() );
		$add_listurl = get_permalink( get_option('geodir_add_listing_page') );
		$add_listurl = geodir_getlink( $add_listurl, array('listing_type'=>'gd_place') );
		if(get_current_user_id()) { 
			$author_link = get_author_posts_url( $current_user->data->ID );
			$author_link = geodir_getlink($author_link,array('geodir_dashbord'=>'true','stype'=>'gd_place'),false);
			$authorfav_link = geodir_getlink($author_link,array('stype'=>'gd_place','list'=>'favourite'),false);
		}
		}else{
		$login_url = wp_login_url( get_permalink() );
		$logout_url = wp_logout_url( home_url() );
		
			
		}
?><div class="gdf_welcome_login_wrap"	><ul class="gdf_welcome_login"><?php			
if(get_current_user_id()) { $display_name = $current_user->data->display_name; ?>
<li class="welcome"> <span><?php _e('Welcome',GEODIRECTORY_FRAMEWORK);?>, </span>  <a href="<?php echo $author_link;?>" title="<?php echo $display_name;?>">  <?php echo $display_name;?></a></li>
<li class="userin"><a href="<?php echo $logout_url;?>" class="signin"><?php _e('Logout',GEODIRECTORY_FRAMEWORK);?></a></li>
<?php }else{ ?>
<li class="welcome"><span><?php _e('Welcome',GEODIRECTORY_FRAMEWORK);?>, <strong><?php _e('Guest',GEODIRECTORY_FRAMEWORK);?></strong></span> </li>
<li class="userin"><a href="<?php echo $login_url;?>" class="signin"><?php _e('Sign in',GEODIRECTORY_FRAMEWORK);?></a></li>
<?php }?>
</ul>
</div>
        
 	<?php
	}
	function update($new_instance, $old_instance) {
	//save the widget
		$instance = $old_instance;		
		$instance['title'] = strip_tags($new_instance['title']);
		return $instance;
	}
	function form($instance) {
	//widgetform in backend
		$instance = wp_parse_args( (array) $instance, array( 'title' => '' ) );		
		$title = strip_tags($instance['title']);
?>
		<p>No settings for this widget</p>
     
    
<?php
	}}
register_widget('gdf_welcome_loginwidget');

Yes that is the correct one i posted above.

Stiofan