The Client closes after an hour of use.

I’m running 2 clients with local scripts an after 30 minutes it shows me a message which says that there is no connection to the server for more than 30 minutes and the client is going to close after 5 minutes, finally the client closes after an hour of use, but If I stop the script and starts it again, the time restarts so I can continue botting.

I was not very active in some time, but I don’t remember that I had that problem before, Is this normal?, Do I Really need to pay even if I’m only running three clients or less?