Hello, @MarMar
Thanks for reaching out.
The most probable reason for result absence is that you do not indicate the correct Data Source in the plugin elements. If you check the plugin demo page, you will see that the Repeating group Data Source = the database table on which you are doing your search.
It means you should indicate the Do a search for database table name as a Data Source of your Repeating group. Please find on my screenshot:
Allow me to propose you change the Data Source within the plugin and revert with a result.
Looking to hear you soon.
Best regards,