I recently migrated to Redhat's Openshift PaaS. My site is little bit slow in loading but working fine but Now I am unable to access wp-admin.
mysite/wp-admin is redirecting to
mysite/wp-admin/upgrade.php?_wp_http_referer=%2Fwp-admin%2F which says "webpage is not available.
What may be the possible reason behind it and how to resolve the problem?