I also noted the count for received Rxs on the main window is incorrect again. I'll try to run the Database Tuner again to fix this. Will report back.
Been on the road implementing for two weeks, missed this one.
First, the eRX count will continue to be off over time, known bug. The fix is to run the tuner as you are planning.
Second the error is @ the SQL server level. The fact that it just started showing up would indicate that something on the pharmacy network side has changed, and AC [SQL Server] is choking on it because it breaks their command syntax.
AC will need to isolate it, and they could release updated code in a future release to fix it, but unless they modified something in the interface (without telling folks), the problem is coming from the pharmacy network side.
