Jbird

The error is referencing RaidProtection. Unload that plugin and the issue should stop, once you confirm that I would create a new support request on the files Support tab.

There should even be a button that says "Manage" which should give you two options Download and View file. Do you see those?
If not what are the files you are referring to? Occasionally unmaintained files are disabled from further sales but they still in most cases remain available to download and if it's getting updated then that wouldn't be the case.

Hopefully you sorted this by now but noticed this didn't have any answers so I wanted to make sure.
Main think you'd need to do is just make sure you signed in the same way as before. If you aren't 100% sure try looking for old emails from when you made the purchases. Otherwise if you are logged in the same way you should be able to go to your purchases, right most tab on the main tap towards the top of the site, or go to the files you own and should be able to download it straight from the page.

I just want to say if you think this was a long message, you've never seen me go off on a tangent filled rant.
The one thing I want to mention, is that as far as the prefabs that cause errors, there are a couple things to note. First, one thing that will add to this headache is unlocking all prefabs in the editor. It can be nice as it unlocks some hidden prefabs, but it also unlocks A LOT of stuff that is not intended for use and can cause errors or servers not to load for example.
As to the list I'll see if I can find a reference point for you unless anyone beats me to it.

If a map you are using has this plugin with it, you'd get an updated version there. But if you have a map that does not come with the plugin you can delete it.

There are also data folders and files to move over into your server. Did you do this as well? If not do that. Reloading the plugin should usually give you some hints as it probably unloads right away but should give you some errors that explain why and what it's looking for.
Feel free to join the Mad Mapper Discord you can create tickets there any time. And @Adem will always help when he is free.

Reload the plugin and check console for the loading messages, if it fails to load it should tell you why. Here are a couple common things to check for.
Ensure NpcSpawn is installed Ensure all Data files were moved and are in the exact same format as they are in the download Folder structure inside the data folder of the download should match your server Reload the plugin and check console for the loading messages If it fails to load you should also see the reason Feel free to create a support ticket on the site where Death linked you or you can also jump into the Mad Mapper Discord to create a ticket there, and stay in touch with the team in the future.
 

First you need all of the data files added to your server. You'll see even an Images folder which might be new to some people. This is a folder and needs added along with the images inside. These do not get added to ImagesLibrary this plugin does not use it.
Once you have all of the data files installed, also make sure you have the most recent version of NpcSpawn installed, and then reload or install the DefendableBases plugin and you will be good to go.

Correct. It needs to be uploaded somewhere and the link can be used in your server setup.
 
Correct all plugins or files that end in .cs will go in the oxide plugins folder.
 
Correct if there is a folder with one or more files in it, you can move the whole folder as specified. If for any reason that's difficult as some hosts won't allow this, you can create a folder but make sure that it is spelled and has the same punctuation (capitalization).
 
Do you own the BetterNpc plugin? If not then you can ignore those files, they are custom profiles for the plugin but only work if you already own it.
That is the same for DefendableBases which you indicated above. If you do not already own that plugin you can ignore that folder and those files as well.
 
In regards to any additional support regarding running the map, it is best to go to your host if you have one, or if you use a tool the instructions for that tool. There are many different methods and steps, They generally are all doing the same thing but some hosts do not allow access to config files and have the setup through their dashboard, or if you are hosting it yourself and are using a tool, it also might have an entirely different set of steps.

Since it's been like 2 weeks since you asked and don't have an answer you may have figured this out already.
But I did want to let you know that 0 would be the option to utilize BetterLoot configuration.
AlphaLoot and CustomLoot are plugins.
Hope this helps or that you already got your answer!