cannot access my dashboard after update

Errors like this are logged. Check the error log on your server. If you can’t find the log, please contact your host.

Meantime, enable wp_debug and wp_debug_log and after an error, look at wp-content/debug.log to see if anything gets logged there. https://codex.www.ads-software.com/Debugging_in_WordPress

You can also try this: Please attempt to disable all plugins, and use one of the default (Twenty*) themes. If the problem goes away, enable them one by one to identify the source of your troubles.

If you cannot access wp-admin, there are other ways to deactivate plugins.

Hello Gerald55,

Kindly Set WP_DEBUG to true in your wp-config.php file via SFTP or FTP, or a file manager in your hosting account’s control panel to see what type of errors are being outputted on the screen.

define( ‘WP_DEBUG’, true);

Thanks, this is what I get:

Notice: Undefined index: wp_db_temp_dir in /home/pattymaccpan/public_html/wordpress/wp-content/plugins/wp-db-backup/wp-db-backup.php on line 112

Fatal error: Uncaught Error: Call to a member function using_index_permalinks() on null in /home/pattymaccpan/public_html/wordpress/wp-includes/rest-api.php:344 Stack trace: #0 /home/pattymaccpan/public_html/wordpress/wp-includes/rest-api.php(404): get_rest_url(NULL, ‘/embedpress/v1/…’, ‘json’) #1 /home/pattymaccpan/public_html/wordpress/wp-content/plugins/embedpress/EmbedPress/Core.php(329): rest_url(’embedpress/v1/o…’) #2 /home/pattymaccpan/public_html/wordpress/wp-includes/class-wp-hook.php(286): EmbedPress\Core->addOEmbedProviders(Array) #3 /home/pattymaccpan/public_html/wordpress/wp-includes/plugin.php(203): WP_Hook->apply_filters(Array, Array) #4 /home/pattymaccpan/public_html/wordpress/wp-includes/class-oembed.php(221): apply_filters(‘oembed_provider…’, Array) #5 /home/pattymaccpan/public_html/wordpress/wp-includes/embed.php(115): WP_oEmbed->__construct() #6 /home/pattymaccpan/public_html/wordpress/wp-includes/embed.php(134): _wp_oembed_get_object() #7 /home/pattymaccpan/public_html/wordpress/wp-content/plugi in /home/pattymaccpan/public_html/wordpress/wp-includes/rest-api.php on line 344

For now, remove the plugin by deleting its directory wp-content/plugins/wp-db- backup via FTP or your hosting control panel.

You might then try reinstalling the plugin. If that causes the same problem (1) report it at https://www.ads-software.com/support/plugin/wp-db-backup and (2) consider looking for a different backup plugin.

Moving forward… slowly though.
After deleting the wp-db-backup plugin, I have another error:
Fatal error: Uncaught Error: Call to a member function using_index_permalinks() on null in /home/pattymaccpan/public_html/wordpress/wp-includes/rest-api.php:344 Stack trace: #0 /home/pattymaccpan/public_html/wordpress/wp-includes/rest-api.php(404): get_rest_url(NULL, ‘/embedpress/v1/…’, ‘json’) #1 /home/pattymaccpan/public_html/wordpress/wp-content/plugins/embedpress/EmbedPress/Core.php(329): rest_url(’embedpress/v1/o…’) #2 /home/pattymaccpan/public_html/wordpress/wp-includes/class-wp-hook.php(286): EmbedPress\Core->addOEmbedProviders(Array) #3 /home/pattymaccpan/public_html/wordpress/wp-includes/plugin.php(203): WP_Hook->apply_filters(Array, Array) #4 /home/pattymaccpan/public_html/wordpress/wp-includes/class-oembed.php(221): apply_filters(‘oembed_provider…’, Array) #5 /home/pattymaccpan/public_html/wordpress/wp-includes/embed.php(115): WP_oEmbed->__construct() #6 /home/pattymaccpan/public_html/wordpress/wp-includes/embed.php(134): _wp_oembed_get_object() #7 /home/pattymaccpan/public_html/wordpress/wp-content/plugi in /home/pattymaccpan/public_html/wordpress/wp-includes/rest-api.php on line 344

I’m wondering if perhaps you’re missing a WP file. Try a manual reinstall of WP to ensure all files are there.

https://codex.www.ads-software.com/Upgrading_WordPress#Manual_Update

You are making me nervous here…

I would not want to make a big error, so could you clarify the instructions for me (sorry if it seems silly):
The Codex says:
3 Deactivate plugins.
4 Delete the old wp-includes and wp-admin directories on your web host (through your FTP or shell access).

a) How can I deactivate the plugins directly on my host’s server ?
b) does deleting the directories mean eveything inside the two folders ?

Skip the deactivating plugins are it’s not really relevant to this.

Yes, delete the directories (and contained files and subdirs) wp-admin and wp-includes.

So far I am stuck.
The uploader found in my cPanel file manager only allows to upload individual files. Considering how many there is in the two folders, it would take forever (plus a risk of errors).
I thought that I would use another FTP solution and configured Cyberduck following the given instructions but it finds 0 files after a successfull connexion !

Still researching…

Please contact your host for help using FTP.

Hello Gerald55,

You will need to upload a new WordPress file.

Kindly access your server via SFTP or FTP, or a file manager in your hosting account’s control panel delete all the WP files apart from the wp-content folder and wp-config.php file.

Download a new version of WordPress file via www.ads-software.com/download, extract the file, delete wp-content folder and upload the remaining files.

Thank you lumidee007 .
I tried doing that but now I bumped into another issue.
The GoDaddy file manager does not allow uploading several files at once and it is not foreable to upload all those files one by one.
I wanted to use their FTP client (which is Cyberduck) but their configuration tool does not work and they are not really willing to understand why.
I am obliged to rely on them to fix the problem, which will cost me some $, and hopefully it should be solved today.
Once I am up and running again, do you think possible to find out what really happened ? I would not like to have to go through this again during the next update…

This may help:

https://www.godaddy.com/help/filezilla-ftp-settings-to-upload-your-website-104

Thanks Steven
Unfortunately, GoDaddy does not support Filezilla for Mac OS which I use. They only accept Cyberduck and their configuration tool does not work !

That’s BS. I use FileZilla all the time with GD.