a:1:{s:8:"26_94652";a:5:{s:5:"insid";s:8:"26_94652";s:8:"from_ver";s:5:"6.4.2";s:6:"to_ver";N;s:10:"error_code";i:1;s:5:"error";s:210:"The pre upgrade checks FAILED as external URL(s) could not be accessed.
 This might be due to allow_url_fopen() disabled on your server or CURL failed to access the URL. Hence Auto upgrade can not be performed.";}}