iForm for iOS Error Messages
ERROR: Syncing with Server (Certificate Invalid)
This message appears because the device time is not corresponding with what the server expects. Apple devices can reset back to 1970 if left to un-charge completely, so please check the device time and change it if necessary to clear up the message. To change the device's time/date, please following the below instructions.
STEP 1. Go into the device's settings and select Date & Time.
STEP 2. Tap on the Date and Time below Time Zone.
STEP 3. Tap on the calendar to today's date and Time for the current time.