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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

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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.