Why is this happening

@Override
    public String execute(String args, CommandObject command) {
        for (CharacterObject c : command.characters.getCharacters()) {
            if (c.getName().equalsIgnoreCase(args)) {
                if (c.getUserID().equals(command.authorID)) {
                    List<IRole> userRoles = command.guild.getRolesForUser(command.author);
                    int roleCount = 0;
                    int postRoleCount = 0;
                    //resets User roles back to scratch.
                    for (int i = 0; i < userRoles.size(); i++) {
                        if (command.guildConfig.isRoleCosmetic(userRoles.get(i).getID())) {
                            userRoles.remove(i);
                        } else if (userRoles.get(i) != null) {
                            roleCount++;
                        }
                    }
                    //loads new roles.
                    for (RoleTypeObject r : c.getRoles()) {
                        userRoles.add(command.guild.getRoleByID(r.getRoleID()));
                    }
                    for (IRole role : command.guild.getRolesForUser(command.author)) {
                        if (!command.guildConfig.isRoleCosmetic(role.getID())) {
                            postRoleCount++;
                        }
                    }
                    //validates only if non cosmetic roles were not removed.
                    logger.debug("Prior to Edit Role Count :" + roleCount);
                    logger.debug("Post Edit Role Count :" + postRoleCount);
                    if (postRoleCount >= roleCount) {
                        Utility.roleManagement(command.author, command.guild, userRoles);
                        Utility.updateUserNickName(command.author, command.guild, c.getNickname());
                        return "> Character " + c.getNickname() + " Loaded.";
                    } else {
                        return "> An error occurred while attempting to load your character.";
                    }
                } else {
                    return "> " + c.getName() + " is not your character.";
                }
            }
        }
        return Constants.ERROR_CHAR_NOT_FOUND;
    }

//UTILITY CODE

public static RequestBuffer.RequestFuture<Boolean> roleManagement(IUser author, IGuild guild, List<IRole> userRoles) {
        return RequestBuffer.request(() -> {
            try {
                IRole[] roles = new IRole[userRoles.size()];
                int i = 0;
                for (IRole r : userRoles) {
                    if (r == null) {
                        logger.error("ROLE RETURNED NULL");
                    }
                    roles[i] = r;
                    i++;
                }
                for (IRole r : roles){
                    System.out.print(r.getName() + ", ");
                }
                System.out.print("\n");
                guild.editUserRoles(author, roles);

                System.out.println("this.");
            } catch (MissingPermissionsException e) {
                if (e.getMessage().contains("Edited roles hierarchy is too high.")) {
                    logger.debug("Error Editing roles of user with id: " + author.getID() + " on guild with id: " + guild.getID() +
                            ".\n" + Constants.PREFIX_EDT_LOGGER_INDENT + "Reason: Edited roles hierarchy is too high.");
                    return true;
                } else {
                    e.printStackTrace();
                    return true;
                }
            } catch (DiscordException e) {
                if (e.getMessage().contains("CloudFlare")) {
                    roleManagement(author, guild, userRoles);
                } else {
                    e.printStackTrace();
                    return true;
                }
            } catch (RuntimeException e){
                e.printStackTrace();
            }
            return false;
        });
    }

public static RequestBuffer.RequestFuture<Boolean> updateUserNickName(IUser author, IGuild guild, String nickname) {
        return RequestBuffer.request(() -> {
            try {
                guild.setUserNickname(author, nickname);
            } catch (MissingPermissionsException e) {
                if (e.getMessage().toLowerCase().contains("hierarchy")) {
                    logger.debug("Could not Update Nickname. User's position in hierarchy is higher than mine.");
                } else {
                    e.printStackTrace();
                }
                return true;
            } catch (DiscordException e) {
                if (e.getMessage().contains("CloudFlare")) {
                    updateUserNickName(author, guild, nickname);
                } else {
                    e.printStackTrace();
                    return true;
                }
            }
            return false;
        });
    }