Works perfectly on 7.1.5.
We need to do both wrote francisca_carv.
Before installing it on Admin>Modules you have to modify the file config.php on \sandklock\scroll_top_lite\install and Replace 7.1.2 to 7.1.5.

'version' => '7.1.5',
'vendor' => 'SandKlock',
'update_url' => '',

'compatible_with' => array(
'7.0.0','7.0.1','7.0.2','7.0.3','7.0.4','7.0.5','7.0.6','7.0.7','7.0.8','7.0.9','7.1.0','7.1.1','7.1.2','7.1.5'
),