[SOLVED][lsapi:error] Backend error on sending request(GET /wp-login.php HTTP/1.1); uri(/index.php) content-length(0) (lsphp is killed?): Unexpected LS header with data. Data len is 162

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  • [SOLVED][lsapi:error] Backend error on sending request(GET /wp-login.php HTTP/1.1); uri(/index.php) content-length(0) (lsphp is killed?): Unexpected LS header with data. Data len is 162

Sometimes you might encounter lsapi Unexpected LS header with data error.

This is part of lsapi processing and can be fixed in the following ways:

  • open /etc/httpd/conf/extra/mod_lsapi.conf or
    /usr/local/apache/conf/conf.d/lsapi.conf (on Cpanel servers)
  •  add this line:
    lsapi_backend_accept_notify On
  • Restart Apache:
    service httpd restart

After this the error will be gone.