Problem whit domain SSL_ERROR_NO_CYPHER_OVERLAP

I have some domains and subdomains with the SSL certificate generated by the LetsEncrypt plugins that show this type of error SSL_ERROR_NO_CYPHER_OVERLAP, while others work correctly.

I tried to modify apache and nginx files by inserting

SSLProtocol all -SSLv3
SSLCipherSuiteECDHE-ECDSA-CHACHA20-POLY1305: ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256: ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384: ECDHE-RSA -AES256-GCM-SHA384: DHE-RSA-AES128-GCM-SHA256: DHE-RSA-AES256-GCM-SHA384: ECDHE-ECDSA-AES128-SHA-256: ECDHE-RSA-AES128-SHA-256: ECDHE-ECDSA-AES128-SHA : ECDHE-RSA-AES256-SHA384: ECDHE-RSA-AES128-SHA: ECDHE-ECDSA-AES256-SHA384: ECDHE-ECDSA-AES256-SHA: ECDHE-RSA-AES256-SHA: DHE-RSA-AES128-SHA-256: DHE -RSA-AES128-SHA: DHE-RSA-AES256-SHA256: DHE-RSA-AES256-SHA: ECDHE-ECDSA-DES-CBC3-SHA: ECDHE-RSA-DES-CBC3-SHA: EDH-RSA-DES-CBC3 -SHA: AES128-GCM-SHA256: AES256-GCM-SHA384: AES128-SHA-256: AES256-SHA-256: AES128-SHA: AES256-SHA: DES-CBC3-SHA:! DSSSSLHonorCipherOrder onSSLCompression offSSLSessionTickets off

but it seems to have no effect

i-MSCP 1.5.3
Build: 20180516
Codename: Ennio Morricone

PHP 5.6.36-1+0~20180505045733.13+jessie~1.gbp9b5cab (cli)
Copyright (c) 1997-2016 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies
with the ionCube PHP Loader (enabled) + Intrusion Protection from ioncube24.com (unconfigured) v10.0.3, Copyright (c) 2002-2017, by ionCube Ltd.
with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend Technologies

Browser on Android 7

Quote from Nuxwin

@theprincy

You should avoid to play with configuration without knowing what you're doing

the question is that nothing has been touched, if not update. thing that on other servers, with the same settings does not happen

before posting I did a search on google and I saw the various answers to the problem.

No changes have been made before last major update dates back to months ago. Up to two / three days ago everything went perfectly even if these sites were slowed down, this morning came out that problem. so I started looking for a solution.

along with the problem on android, before it was also on the version offirefox 59.0.2, modifying the files domain_ext_ssl.conf the site is seen
on the desktop but not on the mobile.

my question is how come if the server settings are the same for all the other domains they did not have this problem?

I recreated ssl externally, through the site https://www.sslforfree.com and a site also works on mobile, while other does not always work on mobile while the browser on the PC works.

the problem is the certificate generated by the plugin and by cloudflare that is not recognized