Custom Pagination on custom taxonomy terms

Hello fellows,
I want to paginate my custom taxonomy terms but it seens i had run in some king of problem. I saw an post and I had made exacly like its there (well I supose, maybe I dont see the problem).

So I try to display the taxonomy terms in Homepage.

Taxonomy Name: proiecte
This is my code:

<?php
		if ( get_query_var( 'paged' ) )
			$paged = get_query_var('paged');
		else if ( get_query_var( 'page' ) )
			$paged = get_query_var( 'page' );
		else
			$paged = 1;

		$per_page    = 3;
		$number_of_series = count( get_terms( 'proiecte' ) );
		$offset      = $per_page * ( $paged - 1) ;

		// Setup the arguments to pass in
		$args = array(
			'orderby'           => 'modified',
			'order'             => 'ASC',
			'hide_empty'        => false,
			'childless'         => false,
			'offset'       => $offset,
			'number'       => $per_page
		);
		$categorii = get_terms( 'proiecte', $args );
		// var_dump($categorii);
		foreach ($categorii as $key) {
			$id = $key->term_id;
			$poza_coperta = get_field('poza_coperta', 'proiecte_'.$id );
			$nume = $key->name;
			$cartier = get_field('cartier', 'proiecte_'.$id );
		?>
		<div class="col-md-3">
			<div class="each-proiect proiect">
				<div class="poza-proiect">
					<a href="<?php echo get_term_link( $key ); ?>"><img src="<?php echo $poza_coperta['sizes']['poza_proiect']; ?>" alt=""></a>
				</div>
				<div class="proiect-detalii text-center">
					<a href="#"><?php echo $nume; ?></a>
					<span><?php echo $cartier; ?></span>
				</div>
			</div>
		</div>
	<?php } ?>
</div>
<div class="row">
	<div class="col-md-12">
	<?php
		global $wp_query;

		$big = 999999999; // need an unlikely integer

		if (function_exists("wp_pagenavi")) {
		echo paginate_links( array(
			'base'    => str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ),
			'format'  => '?paged=%#%',
			'current' => $paged,
			'total'   => ceil( $number_of_series / $per_page ) // 3 items per page
		) );
	} ?>
	</div>
</div>

The problem is that if I go to /page/2 it will bring me to the correct page, but the pagination numbers and stuffs isnt displayed. Website here: https://bit.ly/1QIVb5E
Please fellows, give me a clue ….. I just can`t figure out.