I followed all the steps yesterday before writing here. Interestingly, when testing the plugin through a local server, everything worked perfectly.
I reset the entire cache about 10 times. After you said that you see everything, I cleared my cookies as well. Continues to appear 0 after selecting a category or page.
https://prnt.sc/1q9oji9 – Without selecting page/category
https://prnt.sc/1q9ok3w – Selected Category
https://prnt.sc/1q9ol1f – Selected Page number