DroopsLoops

Hey, how do I create a new thread? I'm not the most advance programmer. In fact I'm a bit lost in some parts of this code. If you can help me a bit more or direct me on the way of a tutorial that help me with the problem would be awesome. Also I dont know what is the problem in the line #9... so the same that up there, if you can help me a bit more or direct me on the way of a tutorial that help me with the problem would be awesome. Thanks for the answers everyone!

Hey! I have an error in the login.php. Can you help me solve it? the error is the following: