Private Function CorrectDetailsSign() As Boolean
    lblUsernameErrorSin.Show()
    lblPasswordErrorSin.Show()
    lblPasswordRepeatErrorSin.Show()
    'Assigns errors if there's an error in any of the text
    If txtUsernameSin.Text = "Username" Or txtUsernameSin.Text = "" Then
        lblUsernameErrorSin.Text = "Null error"
    ElseIf CheckForRepeatingUsername() = True Then
        lblUsernameErrorSin.Text = "Username already exists"
    ElseIf txtUsernameSin.Text.Contains(",") Then
        lblUsernameErrorSin.Text = "Commas are prohibited"
    Else
        lblUsernameErrorSin.Hide()
    End If
    If PasswordSign = "" Then
        lblPasswordErrorSin.Text = "Null error"
    ElseIf (PasswordSign.Length < 8 Or CheckNumbers() = False Or CheckSpecialCharacter() = False) And Not PasswordSign.Contains(",") Then
        lblPasswordErrorSin.Text = "Requirements: 8 char, 1 num, 1 special char"
    Else
        lblPasswordErrorSin.Hide()
    End If
    If PasswordRepeat <> PasswordSign Then
        lblPasswordRepeatErrorSin.Text = "Passwords must match"
    ElseIf txtPasswordRepeatSin.Text = "" Or txtPasswordRepeatSin.Text = "Confirm Password" Then
        lblPasswordRepeatErrorSin.Text = "Null error"
    Else
        lblPasswordRepeatErrorSin.Hide()
    End If
    If lblUsernameErrorSin.Visible = True Or lblPasswordErrorSin.Visible = True Or lblPasswordRepeatErrorSin.Visible = True Then
        Return False
    End If
    Return True
End Function