I'm having the same problem he is and already did what you suggested, Tony. I can not make Trinity show back up under the "Plugin" tab in Demonbuddy. I can't find the "manage file" to include a log, but here is my log in its entirety:
2014-04-19 16:04:10,783 [1] INFO MainWindow (null) - Demonbuddy v1.1.1819.357 started
2014-04-19 16:04:28,532 [5] INFO MainWindow (null) - Logging in...
2014-04-19 16:04:29,245 [5] INFO MainWindow (null) - T: 5247021221115321744 H: 3153125452
2014-04-19 16:04:29,382 [1] INFO MainWindow (null) - Attached to Diablo III with pid: 6352
2014-04-19 16:04:29,468 [1] INFO MainWindow (null) - Flashing window
2014-04-19 16:04:31,306 [1] DEBUG MainWindow (null) - Executable Path: D:\RedRiver D3\Demonbuddy.exe
2014-04-19 16:04:31,307 [1] DEBUG MainWindow (null) - OS Architecture: AMD64
2014-04-19 16:04:31,310 [1] DEBUG MainWindow (null) - OS: Windows 7 Service Pack 1 64-bit
2014-04-19 16:04:31,321 [1] DEBUG MainWindow (null) - OS Language: English (United States)
2014-04-19 16:04:31,409 [1] DEBUG AssemblyLoader`1 (null) - Reloading AssemblyLoader<Zeta.Common.Plugins.IPlugin> - Initializing plugins
2014-04-19 16:04:32,796 [1] INFO AssemblyLoader`1 (null) - Compiler Error: d:\RedRiver D3\Plugins\Trinity\Cache\RefreshGizmo.cs(146,17) : warning CS0162: Unreachable code detected
2014-04-19 16:04:32,797 [1] INFO AssemblyLoader`1 (null) - Compiler Error: d:\RedRiver D3\Plugins\Trinity\Cache\RefreshGizmo.cs(177,17) : warning CS0162: Unreachable code detected
2014-04-19 16:04:32,797 [1] INFO AssemblyLoader`1 (null) - Compiler Error: d:\RedRiver D3\Plugins\Trinity\Cache\RefreshGizmo.cs(549,29) : warning CS0162: Unreachable code detected
2014-04-19 16:04:32,797 [1] INFO AssemblyLoader`1 (null) - Compiler Error: d:\RedRiver D3\Plugins\Trinity\Cache\RefreshGizmo.cs(566,29) : warning CS0162: Unreachable code detected
2014-04-19 16:04:32,798 [1] INFO AssemblyLoader`1 (null) - Compiler Error: d:\RedRiver D3\Plugins\Trinity\Cache\RefreshGizmo.cs(625,29) : warning CS0162: Unreachable code detected
2014-04-19 16:04:32,798 [1] INFO AssemblyLoader`1 (null) - Compiler Error: d:\RedRiver D3\Plugins\Trinity\Cache\RefreshGizmo.cs(642,29) : warning CS0162: Unreachable code detected
2014-04-19 16:04:32,798 [1] INFO AssemblyLoader`1 (null) - Compiler Error: d:\RedRiver D3\Plugins\Trinity\Cache\PlayerInfoCache.cs(222,48) : error CS1061: 'Zeta.Game.Internals.BountyInfo' does not contain a definition for 'LevelArea' and no extension method 'LevelArea' accepting a first argument of type 'Zeta.Game.Internals.BountyInfo' could be found (are you missing a using directive or an assembly reference?)
2014-04-19 16:04:33,017 [1] INFO AssemblyLoader`1 (null) - Compiler Error: d:\RedRiver D3\Plugins\zRiftBot\RiftBot.cs(16,7) : error CS0246: The type or namespace name 'Trinity' could not be found (are you missing a using directive or an assembly reference?)
2014-04-19 16:04:33,017 [1] INFO AssemblyLoader`1 (null) - Compiler Error: d:\RedRiver D3\Plugins\zRiftBot\RiftBot.cs(86,39) : error CS0246: The type or namespace name 'Trinity' could not be found (are you missing a using directive or an assembly reference?)
2014-04-19 16:04:33,017 [1] INFO AssemblyLoader`1 (null) - Compiler Error: d:\RedRiver D3\Plugins\zRiftBot\RiftBot.cs(197,33) : error CS0246: The type or namespace name 'Trinity' could not be found (are you missing a using directive or an assembly reference?)
2014-04-19 16:04:33,018 [1] INFO AssemblyLoader`1 (null) - Compiler Error: d:\RedRiver D3\Plugins\zRiftBot\RiftBot.cs(222,31) : error CS0246: The type or namespace name 'Trinity' could not be found (are you missing a using directive or an assembly reference?)
2014-04-19 16:04:33,470 [1] DEBUG MainWindow (null) - There are 1 plugins
2014-04-19 16:05:25,778 [1] DEBUG BotMain (null) - Cannot stop a bot when it is not running.
2014-04-19 16:05:25,781 [1] DEBUG MainWindow (null) - Forcing all open windows to close.