Solved Eclipse error

Good morning folks
Im here once again, with an eclipse derp this time.
Could anyone explain to me what i am doing wrong here:

Code:

    FileConfiguration mapconfig;
    Config customconfig;
 
    // Arena list
    public HashMap<String, Integer> maps;
 
    void load(){
         customconfig = new Config(FPSCaste.getInstance());
         FileConfiguration mapconfig = customconfig.getConfig("maps");
    }
 
    /**
        * Load all maps-related stuff.
        * @return
        */
    public void loadmaps()
    {
        maps = new HashMap<String, Integer>();
       
        for (String mapname: mapconfig.getKeys(false));
        {
            maps.put(mapname, 0);
        }
    }

Eclipse gives me the following errors:
When highlighting the new Config(FPSCaste.getInstance()) part:
- "Cannot instantiate the type Config"

When highlighting the customconfig.getConfig("maps"); part:
- "The method getConfig(String) is undefined for the type Config"

When highlighting the maps.put(mapname, 0); part:
- "mapname cannot be resolved to a variable"

The class Config clearly exists, and works 100%.

and the mapname String gets initialized 2 lines above, in the enhanced for loop. So i do not understaind what the problem is...

Thakns in advance!

- Fixed
I jsut rewrote the method, exacly the same, and it worked like a charm.
Oh you, eclipse...

EDIT by Moderator: merged posts, please use the edit button instead of double posting.