Error message after upgrading!

Hi,

I made my website using ‘Siteorigin pagebuilder and widget bundles’.
However, upgrading widget bundles plugin, there’s error message like that:
————————————————————-
Fatal error: Call to undefined function is_google_webfont() in /home3/medprime/public_html/medprime.net/wp-content/plugins/so-widgets-bundle/base/inc.php on line 161
————————————————————–
If I deactive the plugin, my website is working except widget bundle’s function.
If I active the plugin, it gives the error message above.
How can I solve this problem?

https://ww.wp.xz.cn/plugins/so-widgets-bundle/