sorry about the bug, please open file in evolve\templates\header_v1.php and edit these lines, #42:
echo "<div class='header-logo-container clearfix'><a href=" . home_url() . "><img id='logo-image' class='img-responsive' alt=" . get_bloginfo('name') . " src=" . $evolve_header_logo . " /></a></div>";
} else {
echo "<div class='header-logo-container'><a href=" . home_url() . "><img id='logo-image' class='img-responsive' alt=" .get_bloginfo('name') . " src=" . $evolve_header_logo . " /></a></div>";
change to:
echo "<div class='header-logo-container clearfix'><a href=" . home_url() . "><img id='logo-image' class='img-responsive' alt='" . get_bloginfo('name') . "' src=" . $evolve_header_logo . " /></a></div>";
} else {
echo "<div class='header-logo-container'><a href=" . home_url() . "><img id='logo-image' class='img-responsive' alt='" .get_bloginfo('name') . "' src=" . $evolve_header_logo . " /></a></div>";
will be fixed in the next version ??