Failed to install the SSL certificate from Let's Encrypt: Failed letsencrypt execution

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My domain is:

I ran this command: plesk extension

It produced this output: Failed to install the SSL certificate from Let’s Encrypt: Failed letsencrypt execution. Domain:
Type: unauthorized
Details: Invalid response from
& quot; & quot; head & gt; Apache Tomcat / 7.0.52 (Ubuntu) - Error
report </ title> <! - H1
{font-family: Tahoma, Arial, sans-serif; color: & quot;

My operating system is (include version): Ubuntu 16.04

My web server is (include version): tomcat7

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don’t know): yes

I’m using a control panel to manage my site (no, or provide the name and version of the control panel):

I create /.well-known/acme-challenge/test.txt folder which is accessible. but when I try to install certificate from plesk panel it throws the above error.

please help me. I have a very urgent requirement to configure ssl for my website.

hi @manojkeshava

looks like your webserver is not configured properly and is not returning the file needed

Hi @ahaw021
I had just shared an example domain name. Here is my domain name which is configured
Please help me to solve this problem.

hi @manojkeshava

if you browse to

you can see that nothing is returned

you have two choices

a) fix tomcat
b) use a DNS challenge instead


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