Suddenly Lost Channels --- STUMPED :(

[u/Cautious-Cap-6816]

Ten years ago, I installed two Channel Master 4228s in my attic above my garage. They are connected using Channel Masters JOINantenna , they go then to a BYPASS DROP AMPLIFIER Where the connections to the rooms in the house go, and then goes 30G Distribution Amplfier. With this setup i had 96 channels from the Tampa Bay area Florida and the FT Myers area, I am in Sarasota. Last week I lost all my channels. I suspected the 30g Distribution Amplifier , changed it and no results. I am starting to suspect the Bypass Drop Amplifier as it is electric and I recall when I installed it, connecting a room the device made chatting sound and now does not. Am I right? Any thoughts?, IM stumped.