Thunderbird Community Forum

Sorry for posting this here but no response in TB forum. After I installed the latest up grade TB 115 I have lost all the old emails in my inbox, sent, and trash as well as the ability to use TB as I can't sign in. I get the following prompt when trying to use my account. "Sending of password for user ****@att.net did not succeed. Mail server inbound.att.net responded: [SYS/TEMP] Server error - Please try again later", and then a prompt to "Enter your password" which does not work, although the pass word shows up in"passwords". The TB account works fine in the Yahoo web account, but I don't keep anything there on a daily basis. The web TB account lets me send and receive mail normally. I haven't changed my configuration ,password or uninstalled TB. My G mail works normally. My android cell also won't let me sign in and asks for credentials per password which is unrecognized.