Burger not compatible with 551 jQuery problem

Themme is not working properly anymore with WP 5.5.1 .

JQuery debugger gives problems :

This page generated the following warnings:

https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated
https://burgerille.fi/wp-content/themes/burger/js/admin.js: jQuery.fn.live() is deprecated

Please make sure you are using the latest version of all of your plugins, and your theme. If you are, you may want to ask the developers of the code mentioned in the warnings for an update.
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Any chance to get an update to the Theme I paid for?

I'm guessing they are working on it. They told me that the rocketfish.js file is the issue. It was supposed to be fixed in my theme, but the fix was the same as the original (so I think), so it did nothing. Hope they can resolve these issues soon.

Installing newly released version fixed this.