Plugins SMS Register and SMS Read More are updated, some small change took place – we added new Fortumo servers IP addresses, and did some minor code changes, to prevent bugs on certain server configurations. You should update plugins as soon as possible, because Fortumo will start using new server addresses starting from 28. april.
If you already own SMSRM, update it as any other standard WP plugin – you will se notification in “Updates” area in WP admin panel. If you can’t see update notification, follow this procedure to check for updates again:
You can purcache SMS Read More here:
Support center: Support.