hi
add this code in wplms-customizer.php
add_filter('wplms_text_correct_answer','fallback_for_quotes_wplms_text_correct_answer',12,2);
function fallback_for_quotes_wplms_text_correct_answer($str_lowered_c_answer,$c_answer){
if(strpos( $str_lowered_c_answer,' ') !== false){
$str_lowered_c_answer = str_replace(' ', '', $str_lowered_c_answer);
}
return $str_lowered_c_answer;
}