From this webpage https://support.vzw.com/alltel/messaging/index.html, I try to Send Text Message and I get this in the next screen using Firefox browser. can someone help me?
Server Error
This server has encountered an internal error which prevents it from fulfilling your request. The most likely cause is a misconfiguration. Please ask the administrator to look for messages in the server's error log.
I was successfully able to send using the website about 7 days ago and now it does not work???