[Theme: Bizz] The homepage sildeshow doesn't work

I added three slides a year ago and the slideshow worked very well, displaying them dynamically one by one. But recently I found out that the homepage slideshow can not display all the slides automatically, but stay on the first slide I set. The navigation arrow-button of the slideshow stops working too.
https://scr.hu/9dzi/7topk

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### WordPress Environment ###

Home URL: https://www.zonterapitofflor.se
Site URL: https://www.zonterapitofflor.se
Jigoshop Version: 1.17.7
Jigoshop Database Version: 1503180
Log Directory Writable: ? To allow logging
husband /customers/c/2/b/zonterapitofflor.se/httpd.www/wp-content/uploads/jigoshop-logs/ writable or define a custom JIGOSHOP_LOG_DIR.

WP Version: 4.3.1
WP Multisite: –
WP Memory Limit: 40 MB – We recommend setting the memory to at least 64MB. See: Increasing the Memory Allocated to PHP
WP Debug Mode: –
Language: en_US

### Server Environment ###

Server Info: Apache
PHP Version: 05/06/15
PHP Post Max Size: 96 MB
PHP Time Limit: 50
PHP Max Input Vars: 5000
SUHOSIN Installed: –
MySQL Version: 05/05/45
eAccelerator: ?
APC: ?
OpCache: ?
Short Open Tag:
Allow URL fopen:
Session:
Cookie Path: /
Save Path: /customers/c/2/b/zonterapitofflor.se/tmp
Use Cookies:
Use Only Cookies: ?
Max Upload Size: 96 MB
Default Timezone is UTC:
fsockopen/cURL:
SoapClient:
Remote Post:
Remote Get:

### Server Locale ###

decimal_point: .
thousands_sep: Not available
mon_decimal_point: Not available
mon_thousands_sep: Not available

### Active Plugins (6) ###

Anything Popup: by Ronen Ramasamy – 5.8.1
Contact Form 7: by Takayuki Miyoshi – 4.3
Google Analyticator: village Video User Manuals – 6.3.4
Jigoshop: by Jigoshop Limited – 1.17.8
Regenerate Thumbnails: by Viper007Bond – 2.2.4
WP Google Fonts: by Adrian Hanft
Aaron Brown – v3.1.1

### Settings ###

Taxes Enabled:
Shipping Enabled:
Force SSL: –
Currency: SEK (SEK)
Currency Position: right_space
Thousand Separator: ,
Decimal Separator: .
Number of Decimals: 0

### Jigoshop Pages ###

Shop Base: # 170 – / shop /
Kundvagn: # 171 – / cart /
Kassa: # 177 – / checkout /
Betala: # 178 – / checkout / pay /
Thanks: # 179 – / checkout / thanks /
Mitt Konto: # 173 – / my-account /
Edit Address: # 174 – / my-account / edit-address /
Visa best?llning: # 176 – / my-account / view orders /
Byt l?senord: # 175 – / my-account / change-password /
Track Order: # 172 – / order tracking /
Terms: # 190 – / Terms and conditions /

### Taxonomies ###

Product Types: configurable (configurable)
downloadable (downloadable)
external (external)
Grouped (Grouped)
simple (simple)
variable (variable)
virtual (virtual)

### Theme ###

Name: Bizz
Version: 1.0
Author URL:
Child Theme: ? – If you’re modifying Jigoshop or a parent theme you did not build personally We recommend using a child theme. See: How to create a child theme
Jigoshop Support: Note the Declared

### Templates ###

Overrides: bizz/jigoshop/checkout/review_order.php
bizz/jigoshop/checkout/shipping_dropdown.php
bizz/index.php
bizz/jigoshop/shortcode/cart.php