Ok, now it’s works perfectly with line #93 like this:
<?php if ($hcl1_btn1_text != '' && $hcl1_btn1_link != '') echo '<a href="' . esc_url($hcl1_btn1_link) . '" target="_blank" class="btn '.esc_attr( $btn_1_style ).' btn-lg">' . wp_kses_post($hcl1_btn1_text) . '</a>'; ?>
One more.
How to change color font for undermenu to black also?