Skylin3r here,
This is a tool i have written to help with the Toon setup part of Towelliee's UI Installation
Check out THESE general guidelines for using the tool to avoid issues, especially with additional toon setup.
V1.0.5.0 Added option to copy back your previous keybinds/macros from the backup made by the Clean Install option.
It is highly recommended not to delete or move your WTF folder if you want to use this feature.
It's Best to just make a copy of the WTF folder you want to back it up yourself.
Installer/Game Instructions
Step 1: Make sure you have the latest version of Towelliee's Tank UI.
Step 2: Put Towelliee.exe in your wow folder (same folder where wow.exe is, retail = _retail_, classic = _classic_)
Step 3: Run Towelliee.exe (the Toon setup installer) from your wow folder, and select the appropriate install type, for initial install it is recommended to do a Clean Install (some installer info below).
Step 4: Once you're in game just click that HAMMERS UP!!! button.
Step 5: Quit game completely for Additional Toon installation.

• If you are having issues getting your toon setup run the toon installer as admin
  (right click towelliee.exe -> run as administrator)
  
• The ui install instruction video on youtube is obsolete, do not use it as instructions to install the current UI verions

The chat is flooded with messages such as 'Your AddOns are experiencing a large number of errors and may be slowing down the game.' And neither buggrabber nor bugsack help me figuring out what the cause of it is (might be because both of these are also outdated and causing their own errors).

• you have 3 install types to choose from, press the ? button for details about them.

• the installer will detect if it's in the correct location, if it's not you will get errors when trying to choose account

• When in the correct location you will be able to choose the account/server/toon from a list of previously played characters on this wow installation
  (if a toon is not listed, log on to it, then exit the game)

Your Addons Are Experiencing A Large Number Of Errors Bfa

• Oct 29, 2020 In our experience, builds are rarely kept up to date, which means they often include several addons that have since been taken down. These builds tend to cause more problems than they solve. Our advice is to uninstall your build and manually install each addon you want.
• BugSack eases the process of viewing bugs. It displays Lua errors that occurred during your play session, including the full debug stack. It aims to be invaluable to developers, and a useful tool for players. LDB data broker plugin that displays the last 5 errors in the tooltip; Frame to display all other errors for the current session.
• As you can see there are a large number of possible addons that you may have already installed on your computer that may be causing problems in IE or that may harbour malware.there is no simple answer except. Don't install stuff for your browser (or computer for that matter) that doesn't come from Microsoft.On windows 10 you can.
• Dec 27, 2016 The chat is flooded with messages such as 'Your AddOns are experiencing a large number of errors and may be slowing down the game.' And neither buggrabber nor bugsack help me figuring out what the cause of it is (might be because both of these are also outdated and causing their own errors).