Akkarin

No idea. OboroCP was supposed to be a paid/licensed control panel. You should obtain support from the developers of that CP.
For all intents and purposes, FluxCP works well enough.

Click RSS Feeds under Content Discovery in ACP

Click Create New button, then select "Topics" and give it a name.
 

 
You'll then find the link under the orange RSS button at the bottom of all your forum pages

 
Use that link as the RSS Feed URL.

You don't loose /conf/ edits by recompiling under pre-re mode. You -should- be using the import folders, though.
Cleaning before building just removes old makefiles and pointer scripts created by the build process.
./configure && make clean && make server  

The error tells you exactly what you need to do. Change your packet_db_ver to 55. If you scroll down in db/packet_db.txt you'll see packet_ver: 55 and client 2015-11-04 there.

chmod +x configure  

Remove the account-based variable character "#" from the variable #Freebie.

Short answer, no.
If you're running the latest version from github then you don't need to apply the upgrades.
The upgrade files are for people who are already running rAthena prior to an sql update. The sql upgrade files will then allow current users to continue running rA without redownloding a fresh current version.

The /doc/ folder is your friend.
https://github.com/rathena/rathena/blob/master/doc/mob_db.txt

Source: https://github.com/rathena/rathena
Enable PRE-RE https://github.com/rathena/rathena/blob/master/src/config/renewal.h#L7
Always download the latest GIT version of any project - then alter the configs to suit your needs.

You were part of the legacy Limited Members group. Limited Members needed to make one post in order to complete verification as of a short while ago.
Congratulations - your 7 month old account has finally been setup. 
Thank you so much for your valued contributions to our project.

Your syntax is wrong so that line is being left out. The top of that file tells you the structure. All custom stuff in the db folder is supposed to go into the import files to prevent merge conflicts.

The doc folder that ships with rAthena has everything you need. All the script commands are detailed in https://github.com/rathena/rathena/blob/master/doc/script_commands.txt

They're loaded one after another and overwrite existing entries, you can have up to 10 if I recall. They don't cause client lag.

I've just asked the devs the same question as i hadn't thought about it before. They said that you can still take the items out from storage, you just won't be able to add any new ones in until you're below the storage limit again.

`item_db_re` is in the rA sql-files dir, while the `items` table is a temporary table that will be created after the other is inserted into your database. FluxCP creates `items` dynamically.

Did you read the documentation? https://github.com/rathena/rathena/blob/master/doc/item_db.txt

If you read the documentation you'd easily find the answer. https://raw.githubusercontent.com/rathena/rathena/master/doc/script_commands.txt
Change cashshop to itemshop and change the variable to an item.

The parenthesis doesn't contain anything because it returns a value - instance_id() is how it's expressed in the docs because that's how it's used. Leave out the values you added to the command and it'll work.

//config/application.php 'BaseURI' => '', // The base URI is the base web root on which your application lies. Change this value from '' to 'fluxcp'

Your file editor doesn't understand the arrows and can't convert them to ascii/unicode in order to save them correctly.

TinyMCE that is bundled with FluxCP already has the functions for images, tables, etc. You can do everything you need to.

Try `id` instead of 'id'. Column names use ` .

That error basically means that the feed URL doesn't exist. Try navigating to those feeds and you'll be met with "this site doesn't exist" errors.

If you mean this haappens when registering via fluxcp, then you have set md5 password hashing in config/servers.php
Don't panic, it's a good thing it stops your passwords from being human readable. entering your password as normal when logging into your client or cp will work fine if md5 is also enabled on your login server.

The MD5 hashsum of 'ragnarok' is 84c114001520462ff6357ee859cac52d, which is neither of the passwords used in your screenshot. I can only suggest that the password you entered when registering was not 'ragnarok' due to a miskey. If i were you i'd replace the password in the db.
On a side-note: all 5 of your signature links point to outdated content. Please update them. We don't want anyone trying to install rAthena using SVN since we don't use it.