There is an issue with the TweetLater server. We’re investigating.
Further updates will follow.
Update April 27, 8:02 am — The server ran out of memory during the night. Everything is back online again.
SocialOomph Blog
There is an issue with the TweetLater server. We’re investigating.
Further updates will follow.
Update April 27, 8:02 am — The server ran out of memory during the night. Everything is back online again.
SocialOomph Blog 
I'm sure you guys will get the server back online asap.Sh** happens sometimes.
Any news? My Twitter Account is locked up on adding new followers. Stating I have exceeded the limits. Been this way for 2 days.
That has nothing to do with TweetLater. You have just reached the limit that Twitter places on how many you can follow.
Hmm, well then something is wrong because ever since I signed up to this trial I have been pegged at 2100 Followers and NO changes. When I attempt a manual change (2 days trying now) it wont allow for that stating Im over the limit. The only thing that has changed is this service and it's auto follow.
Dewald, you were absolutely right. My error. I have reached my limit with Twitter on the number I can follow.Steve