Multiple PHP8 warnings "Expected an object instance when accessing an instance property"

During scan by Phan tool multiple PHP warnings were found in ip_geoloc/views/ip_geoloc_plugin_style.inc (critical level) :
1) In function ip_geoloc_plugin_style_extract_locations(). Expected an object instance when accessing an instance property, but saw an expression $views_plugin_style with type string.
2) In function _ip_geoloc_plugin_style_extract_lat_lng(). Expected an object instance when accessing an instance property, but saw an expression $location with type array.
3)In function ip_geoloc_plugin_style_render_fields(). Expected an object instance when accessing an instance property, but saw an expression $views_plugin_style with type string.
4)In ip_geoloc_get_view_result(). Expected an object instance when accessing an instance property, but saw an expression $field with type string.