Issue Lets Encrypt c[s] is undefined

[destan40]

In 80% cases of generating lets encrypt certificates for domains i get this error:
----
Something went wrong.
c is undefined
----
so cert can not be generated..

A log file under /usr/local/psa/admin/logs/panel.log
doesnt exists

 

[Ales]

The log you're looking for is at /var/log/plesk/panel.log.

I'm not sure what could be causing this issue, though. Do you have ModSecurity enabled on the server?

 

[destan40]

no, its disabled:
Web application firewall mode: Off

In Logfiles:

Domain validation failed for www.XYZ.com: Failed to retrieve authorization for 'www.XYZ.com'
[2019-09-03 09:55:01.289] ERR [panel] Task is not responding: id=426, pid=958012, type=ext-advisor-letsencrypt
[2019-09-03 09:55:01.290] ERR [panel] Task is not responding: id=426, pid=958012, type=ext-advisor-letsencrypt
[2019-09-03 09:55:01.299] ERR [panel] No such file or directory

 

[Bitpalast]

Do the domains in question have a document root directory with appropriate permissions so that these domains can be accessed from the Internet?

 

[destan40]

Do the domains in question have a document root directory with appropriate permissions so that these domains can be accessed from the Internet?

yes the domains are accessible (not localdomains etc.)

 

[TRILOS new media]

This is an issue we have on latest Plesk Obsidian when the Web Application Firewall (WAF) is enabled. I think Plesk Corp. should extend its test cases and deliver a micro update (or let WAF ruleset updates deliver) as soon as possible.
Turning WAF off is a temporary workaround, but can be done only by admin users.