Deprecated: wp_cache_reset() causes admin 500 error

The groups plugin hooks the “add_user_to_blog” action to add users to the blog’s registered group. Inside this hook it tries to run the wp_cache_reset() function, which is deprecated.

In the switch_to_blog function found in this file:

groups/lib/core/class-groups-controller.php

The side affect of this is a 500 error in our admin as we use caching. It means users can’t be added or removed properly.

http://codex.ww.wp.xz.cn/Function_Reference/wp_cache_reset

Thanks in advance.

https://ww.wp.xz.cn/plugins/groups/