404 – pages not working

https://www.jeffbaxter.tech/liveHeartland/index.php/employee-circle-grid/

I have when I go to the second page, my links are removing the “index.php” and it’s causing 404 errors. Could someone point me in the right direction for this fix? I’ve been checking the plugin files to see if I can edit a function but no luck so far.

Thanks,
Jeff