How to enable debug mode for Let’s Encrypt Plesk extension?
Connect to a Plesk server via SSH.
Open the file
/usr/local/psa/admin/conf/panel.iniin a text editor. In this example, we are using the vi editor:
# vi /usr/local/psa/admin/conf/panel.ini
Uncomment or add the following lines:
; Log messages verbosity level (from 0 to 7)
; 0 - only critical errors, 7 - all including debug messages, default - 3
filter.priority = 7
enabled = on
log-requests = true
Save the changes and close the file.
Log entries will appear in the logfile