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Usually you do backups of both just in case something like this happens.
You should be able to still access the website through FTP and maybe enable Debug mode in wp_config to see what is going on and try fixing it from there.
Or have someone that knows the stuff help you there.
yes I have a backup. That’s not the point which I think you have missed. The point is the flaw in the design. Clearly wasting time to go and make changes in FTP because of a flaw in the upgrade process is not what I would classify as good design and is poor process.
The recommended order for updating the website is:
1) Plugins
2) Themes
3) WordPress
Disable auto update so you can make sure your website updates in this order. And also make sure the themes and plugins are compatible with wordpress and each other. Sometimes when a theme or plugin is not compatible with wordpress it can cause the problem. Some themes and plugins haven’t been updated for a long time to be compatible with the newer version of wordpress so can cause the problem.
I don’t think all the CMS like WordPress are 100% perfect. All have some sort of flaws or bug. However, WordPress has been around for a long time with a lot of developers constantly working to refine it, so it’s pretty good. Usually it’s the plugins and themes that can conflict with the CMS and cause the error message. Or many other factors that are not WordPress’ fault.
Anyways, I understand the frustration when it doesn’t work. Just got to figure out the problem or hire someone who knows how to work with WordPress.
Can’t beat something that’s free though.
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This reply was modified 4 years, 1 month ago by chinaman123.
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://wordpress.org/support/article/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.