Hello Nishit we have cheeked the mirror and reports looking good, it looks like mirror working fine except PIN code removals but we think it is an other issue which can be fixed on production site. So you can now adopt your changes on production EN web. Please let us know if we should expect any down times for the site.
We notified our site members about the maintenance for these weekends from 18th to 21st September i hope it will be enough time for you for production EN PHP upgrade.
Please let us know once done we will check again on production site.