upd: we can remove all domains in a group.

advanced/Scripts/webpage.sh

@@ -947,6 +947,7 @@ RemoveCustomWildcardDNSRecord() {
         exit 1
     fi
 
+    if [[ "${domain}" != "*" ]]; then
         validDomain="$(checkDomain "${domain}")"
         if [[ -z "${validDomain}" ]]; then
             echo "  ${CROSS} Invalid Domain passed!"
@@ -961,6 +962,9 @@ RemoveCustomWildcardDNSRecord() {
         if [[ -z "${isEmptyFile}" ]]; then
             rm "$wildcardFilename";
         fi
+    else
+        rm "$wildcardFilename";
+    fi
 
     # Restart dnsmasq to update removed custom CNAME records only if $reload not false
     if [[ ! $reload == "false" ]]; then