Can’t enable

Evn:php 7.1

Fatal error: Uncaught Error: Call to undefined method RainbowHilite\Core\Core::build_assets() in H:\wwwroot\wordpress\wp-content\plugins\wp-rainbow-hilite\include\RainbowHilite\Core\Core.php:176 Stack trace: #0 H:\wwwroot\wordpress\wp-includes\class-wp-hook.php(286): RainbowHilite\Core\Core::activate(”) #1 H:\wwwroot\wordpress\wp-includes\class-wp-hook.php(310): WP_Hook->apply_filters(”, Array) #2 H:\wwwroot\wordpress\wp-includes\plugin.php(466): WP_Hook->do_action(Array) #3 H:\wwwroot\wordpress\wp-admin\plugins.php(177): do_action(‘activate_wp-rai…’) #4 {main} thrown in H:\wwwroot\wordpress\wp-content\plugins\wp-rainbow-hilite\include\RainbowHilite\Core\Core.php on line 176