In seo panel 3.7.0, we have updated the number of keywords to be checked in each cron job execution to 1 for efficient report generation.
Please change your cron job settings to execute cron in every 15 mins. That will give you more accurate results by preventing captcha in search engine results.
*/15 * * * * php seopanel/cron.php
To setup cron job please check following link
Thanks for using seo panel