I am trying to install layer slider and when I upload the file, wordpress is telling me that the the file is too large.
Thank you for getting in touch with us. My name is Attila and I'm happy to assist you today. I appreciate your patience while we've been working towards your ticket.
Such errors usually mean that your host/server settings are limiting your activity. That is why you cannot install it.
You will either need to raise these limits (your host can do that, or you if you have server admin dashboard), so you can install through WordPress. Or alternatively use the FTP method to install it.
Both methods are described in the documentation, please refer to the following URL: https://layerslider.kreaturamedia.com/documentation/#plugin-setup
Best Regards,Attila | Kreatura Support Team