mashirozx

The same issue. While Google analytics has more than 1000 visits recorded(that is a number for my site), the plugin shows less than 100. The plugin works well before, the plugin and Goole shows almost the same. But after the update days before (both wp 5.2 and wp-statistics 12.6.5) this issue keeping troubling me. I tried the update on other sites, met the same issue, and no other plugin on.

Excuse me, I’m with the same issue.
You said, change wp-content/plugins/wp-statistics/includes/classes/class-wp-statistics-admin.php line 337. Not sure which version of wp-statistics you are talking about, seems mine can not paste your code there:
https://i.loli.net/2019/05/24/5ce6ea991785410324.png

I guess maybe your site was under attack? You should have a look at your web server log.