ads not showing in home page

Please use debugging function Show positions to label available positions for automatic insertion:
https://adinserter.pro/documentation#debugging

Then you can use Automatic insertion
https://adinserter.pro/documentation#automatic-insertion

on Homepage
https://adinserter.pro/page-types

Please note that many themes use custom homepage templates and don’t use standard WP hooks which are needed for automatic insertion with plugins.