Hi
You can change the logo by Go to Theme Options > Header builder. These videos will help you to sort out – https://www.youtube.com/watch?v=RbdKjQrFnO4&list=PLMqMSqDgPNmDu3kYqh-SAsfUqutW3ohlG
Theme Options > Header builder > Multiple headers > edit header for the Front page or delete it – http://prntscr.com/sylfh1 https://www.youtube.com/watch?v=BpeXfzNwkOc&feature=youtu.be
If you still facing any issue let us know and send us your WordPress Temporary Logins detail so that we will check your issue
