The “free download” versions are community-shared copies of the genuine Epson service software. They are legal to use (as you own the printer) but are not officially supported by Epson.
The physical waste ink pad absorbs excess ink during cleaning cycles. When the counter reaches its limit, the pad is often nearly full. A proper fix involves: Epson L6190 Resetter Adjustment Program Free Download
Virtually all adjustment programs are flagged by antivirus software as "Potentially Unwanted Programs" (PUPs) because they modify low-level printer firmware. You will likely need to temporarily disable your Windows Defender or antivirus software to extract and run the file. Epson L6190 Resetter Adjustment Program Free Download