Beers Not Syncing

I’m still learning about the tappd API and proper use of this plugin, but I cannot seem to figure out how to sync the beers/menus. (untappd -> into -> website)

I activated the WordPress debug log and found these lines being generated, every time I clicked on the sync button.

I added the beer name, beer slug, and beer ID# from untappd.com, to my site. Any suggestions?

[29-Aug-2018 16:38:29 UTC] PHP Notice: Undefined variable: utfb_id in /home/smithsbi/public_html/content/wp-content/plugins/em-beer-manager/includes/metaboxes/embm-metabox-untappd.php on line 176
[29-Aug-2018 16:38:29 UTC] PHP Notice: Undefined variable: menus in /home/smithsbi/public_html/content/wp-content/plugins/em-beer-manager/includes/metaboxes/embm-metabox-untappd.php on line 206
[29-Aug-2018 16:38:29 UTC] PHP Warning: Invalid argument supplied for foreach() in /home/smithsbi/public_html/content/wp-content/plugins/em-beer-manager/includes/metaboxes/embm-metabox-untappd.php on line 206
[29-Aug-2018 16:38:42 UTC] PHP Notice: Undefined index: delete_missing in /home/smithsbi/public_html/content/wp-content/plugins/em-beer-manager/includes/admin/embm-admin-actions.php on line 407
[29-Aug-2018 16:38:42 UTC] PHP Warning: Illegal string offset ‘untappd_id’ in /home/smithsbi/public_html/content/wp-content/plugins/em-beer-manager/includes/admin/integrations/embm-integrations-untappd.php on line 727
[29-Aug-2018 16:38:43 UTC] PHP Notice: Undefined variable: utfb_id in /home/smithsbi/public_html/content/wp-content/plugins/em-beer-manager/includes/metaboxes/embm-metabox-untappd.php on line 176
[29-Aug-2018 16:38:43 UTC] PHP Notice: Undefined variable: menus in /home/smithsbi/public_html/content/wp-content/plugins/em-beer-manager/includes/metaboxes/embm-metabox-untappd.php on line 206
[29-Aug-2018 16:38:43 UTC] PHP Warning: Invalid argument supplied for foreach() in /home/smithsbi/public_html/content/wp-content/plugins/em-beer-manager/includes/metaboxes/embm-metabox-untappd.php on line 206