my website not working ubuntu 16.04 / vestacp control ERR_SSL_PROTOCOL_ERROR

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I would suggest you to check your Apache configuration file and make sure that the proper SSL files are loaded if the Let’s Encrypt installation was successful.

Let me know if you have any questions.

Hello, @lcdmoviess

There seems to be an issue with the SSL Certificate itself. Please see the output of the openssl command:

openssl s_client -connect

140693040660928:error:1408F10B:SSL routines:ssl3_get_record:wrong version number:../ssl/record/ssl3_record.c:332:
no peer certificate available
No client certificate CA names sent
SSL handshake has read 5 bytes and written 315 bytes
Verification: OK
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 0 (ok)

Can you please double check that your certificate has been installed successfully and check if the apache virtual host is loading the correct ssl files as well?

Let me know how it goes.