The development team continue to work on the fix for this issue. It's currently affecting approximately 15% of MetaTrader 5 accounts.
We're sending out an official email communication to those affected shortly.
The issue has been identified, it's caused by some brokers updating to a newer build version causing issues pulling some account data.
We're working on a fix.
We are experiencing connection issues with some MT5 brokers, the developers are investigating the cause.