[Plugin: Menubar] Set up error

I just installed the Menubar plugin and I’m getting this error message where my menu is supposed to be: “WP Menubar error: Function wpm_display_Basic_46() not found!” Check it out at: https://beachief.com/

I followed all the install instructions and my header file does include a call to wp_head(). Here is my full header.php code:

[Code moderated as per the Forum Rules. Please use the pastebin]

What’s wrong?