HTTP Error 500 By Updating to WordPress 4.7

  • Resolved nnotikhan

    (@nnotikhan)


    8 years, 3 months ago

    I attempt to Update WordPress from 4.6.1 to 4.7, and gave error

    technoply.com is currently unable to handle this request.

    HTTP Error 500

    Now I can’t access to admin login page, I tried to all following steps
    -Disabling all plugins and mu-plugins from FTP,
    -Renamed .htcaccess file,
    -Uploaded manually all WordPress files excluding wp-content and wp-config,
    -Created New Database and Uploaded backed-up database,
    -Switched PHP version 7.0.8
    but non of it worked and still site is down, Please help me out your suggestions would be appreciated.

    Thank You

Viewing 14 replies - 1 through 14 (of 14 total)

  • Site appears to be working now? This is it right https://technoply.com.

    Was a little slow but I was able to load it.

    Thread Starter nnotikhan

    (@nnotikhan)

    But it’s just front page, try https://technoply.com/wp-login.php or wp-admin, that’s not accessible !!!

    Same here on https://belsoft-collaboration.ch/

    I made a restore to WordPress 4.6.1

    • This reply was modified 8 years, 3 months ago by W.INGS.

    I had a similar issue this morning, upgrade from 4.6.1 to 4.7, then during the upgrade Error 500.
    I had to disable all my plugins one by one to find the one that caused the issue.

    In my case it was W3 Total Cache, once disabled, I was able to finish the upgrade, and now my wordpress site is working fine; and I am able to access to the dashboard.

    • This reply was modified 8 years, 3 months ago by dufour_l.

    I was W3 Total Cache on my Site too.

    Solution that worked:

    – Clear all Caches (W3 and CDN Caches like Cloudflare etc.)
    – Disable W3 Plugin
    – Update WordPress
    – Enable W3 Plugin again

    … and all should work!

    Thread Starter nnotikhan

    (@nnotikhan)

    Thanks Guys !!! and Dufour You were right I was using Wp Rocket for cache soo It has external folders ! I renamed plugin and all cache and wp rocket folders and Site got back and updated perfectly

    I too have encountered this. After I got the message, I contacted my hosting company. No problems there. I deleted all the files and reuploaded a backup I had that got the site back up. Tried again. HTTP ERROR 500. Deleted and re-uploaded. Turned off all plugins and followed the manual 4.7 upgrade. Failed again.

    Mind you, I updated about twenty other sites without it issue. This site is extremely simply.

    I am now uploading all the files again. Going to try disabling the plugins and updating through WP.

    Turning off all plugins and running the 4.7 updater once again crashed the site HTTP ERROR 500. Any suggestions?

    Do you have a caching plugin installed? If yes, then clear the cache before updating your wordpress and disable the cache plugin while updating.

    Going to reinstall a fresh copy of WP on the server and rebuild the site. Luckily this is only a three page site so it shouldn’t take very long.

    No caching plugin

    Having the same problem here. I’m running W3 Total Cache, but I disabled it and ran the update again, same 500 error. Mind you, main site works, just can no longer access the admin panel. DreamHost restore option gets me back to business quickly, but it seems there are other issues with this upgrade…

    Hi for all!

    Very easy (for me):
    rename (!) the cache plugin directory,
    eg. “w3-total-cache” to “!w3-total-cache” and that’s work.

    (After that need database update, and then rename the dir to the original name and then update the plugins, etc:
    /wp-admin/update-core.php
    : )))

    J.

    Moderator Ipstenu (Mika Epstein)

    (@ipstenu)

    ?????? Advisor and Activist

    I’m closing this and the issue has, primarily, been caching plugins like W3tc.

    To ‘fix’ you’ll need to delete the following files and folders:

    /wp-content/advanced-cache.php
/wp-content/object-cache.php
/wp-content/db.php
/wp-content/plugins/w3-total-cache
/wp-content/cache/

    You’ll also want to remove the .htaccess lines ??

    In THEORY a reinstall will fix it, but that’s been hit and miss for people. Also note that many hosts use caching like APC or memcached, so it’s possible you have an object-cache.php file that is unrelated.

    If possible, try to flush memcached (if you use wp-cli it’s the command wp cache flush).

Viewing 14 replies - 1 through 14 (of 14 total)
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