Form Is Not Submitting To Database

So after I enter the information on my form it refreshes the new.php page with a new form but doesn't submit any information. I get no errors its just like I clicked refresh on the

Solution 1:

Check after adding name="submit" in <button type="submit" class="btn btn-default">Submit</button>

<button type="submit" class="btn btn-default" name="submit">Submit</button>