How to view users’ IP address
Checking users' IP addresses not only helps you block SPAM accounts, but also protects users when their accounts show signs of being hacked.

Joomla does support this feature, but it's disabled by default. This article shows you how to track a user's IP address when they log in.
1. From the admin page, go to Users > User Action Logs

2. Click the Options button in the right corner. Next, you need to enable the IP Logging feature.

3. Going back to the User Actions Log you will see an additional IP Address column. You can also export the data to a CSV file for management and monitoring.

Note: This feature is supported on Joomla 3 & 4.
I migrated about a thousand items with attachments from K2 using your tool and attachments plugin. I initially did this on a test account. Everything worked fine over there. The migrated article attachments worked fine. Then I backed it all up and moved it to my live domain. Now none of the attachments load. All I get is Exception File Not Found and I can't figure out where to look. Turning on error reporting and debug don't tell me anything. I am guessing the old files were not moved during the migration correct? Or how does that all work? I still have all the original folders in the original places as far as I can tell.
An error has occurred. 0 implode(): Argument #2 ($array) must be of type ?array, string given
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Any idea what's causing this?