We are having the same issue.  I received the following reply from Lacerte:

Being able to efile to any taxing agency requires an approval process with said taxing authority, so until Lacerte has finished that approval process we can't transmit efile to Texas.  Due to the weather situation in Texas right now it is unlikely we will get a status update until next week sometime. I apologize for this inconvenience and I assure you we will take haste in correcting this issue.