Hi @wpdev3cx,
Thank you.
1) Do you have a multisite WordPress installation? => No
2) Do your website front is in the same subdomain with your WordPress administration? => No. It’s something like “xxx.com/wp”.
3) Do you have the same issue in a private/incognito browser window? => Yes. I tried firefox and chrome private windows but same result. Clearing cache did not work, too.
4) May you provide us the website which faces the issue in order to investigate it more? => It’s development environment in AWS. Sorry, I can’t disclose password here. But I can provide screen capture and log.
WordPress version 5.5.3
PHP version 7.4.9
MySQL version : Amazon Aurora
I have exactly same issue on 3CX Live Chat version 9.1.2. I don’t have session management plug-in and I don’t have a multisite WordPress installation or PHP one.
I have same issue. I updated to the latest 3CX Live Chat and WordPress but still have the issue. I also tried uninstall and reinstall but no luck.