This is probably the cause. Please check.
https://forum.mylittlewordland.com/d/117-need-help-with-the-site/7
I think I might know what the login issue is: The My Little Word Land forums (forum.mylittlewordland.com) and the main site (mylittlewordland.com) don't yet share a login system, so you need to register for each one separately. I checked the database, and it looks like you're currently registered on the forum but not on the site.
Sorry the confusion '-_- I haven't yet had time to link the forum and the main website.
Note: I am not an administrator so I don't know for sure, I await an answer from @neoncube .