for (var contact_number : ns.<String>getList("contact")) {
try {
m.setContactBlocked(contact_number, true);
} catch (InvalidNumberException e) {
logger.warn("Invalid number {}: {}", contact_number, e.getMessage());
for (var contact_number : ns.<String>getList("contact")) {
try {
m.setContactBlocked(contact_number, true);
} catch (InvalidNumberException e) {
logger.warn("Invalid number {}: {}", contact_number, e.getMessage());