Significant PHP error caused by affiliates plugin

I'm getting the following error(s):

#1
[client IP] WordPress database error Table 'wp_installname.wp_affiliatereferrers' doesn't exist for query SELECT ar.* FROM wp_affiliatereferrers as ar INNER JOIN ( SELECT url FROM wp_affiliatereferrers WHERE user_id = 13 AND period in ('201604','201603','201602','201601','201512','201511','201510','201509','201508','201507','201506','201505','201504','201503','201502','201501','201412','201411') GROUP BY url ORDER BY sum(referred) DESC LIMIT 0, 10 ) as arr ON ar.url = arr.url WHERE ar.user_id = 13 ORDER BY ar.url, ar.period DESC /* From [subsite.sitename.com/wp-admin/admin-ajax.php?action=_aff_getvisits] in [/nas/content/live/installname/wp-content/plugins/affiliate/affiliateincludes/classes/affiliateadmin.php:346] */ made by do_action('wp_ajax__aff_getvisits'), call_user_func_array, affiliateadmin->ajax__aff_getvisits, referer: http://subsite.sitename.com/affiliates-front-page/

#2
[client IP] WordPress database error Table 'wp_installname.wp_affiliatereferrers' doesn't exist for query SELECT url, SUM(referred) as totalreferred FROM wp_affiliatereferrers WHERE user_id = 13 AND period in ('201604','201603','201602','201601','201512','201511','201510','201509','201508','201507','201506','201505','201504','201503','201502','201501','201412','201411') GROUP BY url ORDER BY totalreferred DESC LIMIT 0, 15 /* From [subsite.sitename.com/affiliates-front-page/] in [/nas/content/live/installname/wp-content/plugins/affiliate/affiliateincludes/classes/affiliateshortcodes.php:1088] */ made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/themes/custom/page.php'), get_template_part, locate_template, load_template, require('/themes/custom/single/content-page.php'), gdlr_content_filter, apply_filters('the_content'), call_user_func_array, do_shortcode, preg_replace_callback, do_shortcode_tag, call_user_func, gdlr_tabs_shortcode, do_shortcode, preg_replace_callback, do_shortcode_tag, call_user_func, gdlr_tab_shortcode, do_shortcode, preg_replace_callback, do_shortcode_tag, call_user_func, affiliateshortcodes->do_affiliatetopvisitstable_shortcode, affiliateshortcodes->show_top_visits_table

### Begin System Info ###

Site_Host wpengine.com

SITE_URL http://sitename.com
HOME_URL http://sitename.com

Site_Login http://sitename.com/secure-access

WordPress Version 4.4.2
PHPMailer Version 5.2.14
Permalink Structure /%postname%/

PHP Version 5.5.9-1ubuntu4.14
MySQL Version 5.6.28
Web Server Info Apache
Multi-site Yes

PHP Safe Mode No
PHP Memory Limit 512M
PHP Post Max Size 100M
PHP Time Limit 360 sec
PHP Max Input Vars 1000

WP_DEBUG Disabled
DISPLAY ERRORS N/A

WP Table Prefix Length: 3 Status: Acceptable

Session Enabled
Session Name PHPSESSID
Cookie Path /
Save Path /var/lib/php5
Use Cookies On
Use Only Cookies On

UPLOAD_MAX_FILESIZE 50 MB
POST_MAX_SIZE 100 MB
WordPress Memory Limit 512 MB
FSOCKOPEN Your server supports fsockopen.
DOMDocument DOMDocument extension installed
SUHOSIN Installed No

wp_remote_post works
External HTTP Requests not blocked
Update Server Access

ACTIVE PLUGINS

Admin Menu Editor Pro: 2.1 (Network Activated)
Affiliate: 3.1.6.6 (Network Activated)
Allow Capital Letters In Username: 0.3 (Network Activated)
Cloner: 1.7.2 (Network Activated)
Contact Form 7: 4.4.1
Contact Form 7 for MyMail: 0.1.2
Contact Form 7 Honeypot: 1.8
Contact Form DB: 2.10.8
Domain Mapping: 4.4.2.1 (Network Activated)
Duplicate Post: 2.6
Goodlayers Conference: 1.0.0
Goodlayers Shortcode: 1.0
Google Analytics +: 3.1.5.1 (Network Activated)
Hide My WP: 5.01 (Network Activated)
Hide WPE Widget: 1.0 (Network Activated) Custom
Indeed Share Mega Theme Pack (Social Share&Locker Pro Add-On): 1.0
Indeed Share Page Views ( Social Share&Locker AddOn ): 1.0
Indeed Social Share & Locker Pro: 6.2
Layered Popups: 5.30
Lockdown WP Admin: 2.3.2
Login With Ajax: 3.1.5
Master Admin Pro: 3.0 (Network Activated) Custom
Master Slider Pro: 2.25.4
Media Library Plus: 2.35 (Network Activated)
Membership 2 Pro: 1.0.2.9 | define( "MS_PROTECT_NETWORK", true );
Multisite Content Copier: 1.5.2 (Network Activated)
Multisite Enhancements: 1.3.3 (Network Activated)
Multisite Toolbar Additions: 1.7.0 (Network Activated)
MyMail - Email Newsletter Plugin for WordPress: 2.1.10
MyMail Live!: 2.0.2
Network Shared Media: 0.11 (Network Activated)
Network Username Restrictions Override: 1.2 (Network Activated)
OH Add Script Header Footer: 1.6
PDF viewer for WordPress: 4.5
Plugin Organizer: 6.0.4
Remember Me Checked: 1.0.1 (Network Activated)
Shortcodes in Menus: 3.1
SmartCrawl: 1.7.7 (Network Activated)
Theia Sticky Sidebar: 1.3.1
ThreeWP Broadcast: 29 (Network Activated)
Ultimate Branding: 1.8.2 (Network Activated)
User Role Editor Pro: 4.24.6 (Network Activated)
WordPress Importer: 0.6.1 (Network Activated)
WordPress Social Login: 2.3.0
WP Master Admin: 2.3.9
WPMU DEV Dashboard: 4.0.9 (Network Activated)
WP Multi-Network: 1.7.0 (Network Activated)
WP Smush Pro: 2.2.2 (Network Activated)

CURRENT THEME Custom

### End System Info ###

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