Deprecated? :\

I’m getting an error, saying…

Deprecated: Non-static method BPGroupSuggest::get_instance() should not be called statically in /home/*sitename*/public_html/wp-content/plugins/bp-groups-suggestions/bp-group-suggest.php on line 429.

I assume something to do with php version. (i’m using 7.1)

Is there anything that I can do to make this work?

Thank you for such a wonderful tool!