Installed Theme Update and Now Get Internal Server Error

Have successfully made it through pass theme updates with Customizr, but this one isn’t working at all. Appreciate any help in finding the fix. Details below:

# SITE_URL: https://www.beckfer.com
# HOME_URL: https://www.beckfer.com
# IS MULTISITE : No

# THEME | VERSION : Customizr | v3.2.8
# WP VERSION : 4.0.1
# PERMALINK STRUCTURE : /%postname%/

# ACTIVE PLUGINS :
Appointment Calendar: 2.7.3
Booking Calendar: 5.2.1
Contact Form 7: 4.0.2
Google Analytics by Yoast: 5.1.4
Huge IT Slider: 2.6.6

PHP Version: 5.4.30
MySQL Version: 5.5.33-log
Web Server Info: Microsoft-IIS/8.0

WordPress Memory Limit: 40MB
PHP Safe Mode: No
PHP Memory Limit: 256M
PHP Upload Max Size: 10M
PHP Post Max Size: 8M
PHP Upload Max Filesize: 10M
PHP Time Limit: 60
PHP Max Input Vars: 1000
PHP Arg Separator: &
PHP Allow URL File Open: Yes
WP_DEBUG: Disabled

Show On Front: nothing
Page On Front: (#0)
Page For Posts: (#0)