Fatal error: Uncaught Error: Call to undefined function …() in /wp-content/plugins/… Stack trace: #0 /wp-includes/class-wp-hook.php…
require_once('/wp-admin/admin…') #8 {main} in /wp-content/plugins/… on line …
There has been critical error on your website. Please check your site admin email infobox for instruction.
Error
this means that the last plugin you installed is not working properly on your site and should be disabled. These types of errors are most often caused by a bug in the plugin, a lack of plugin support for your WordPress version (see how to check your WordPress version), or conflicts between plugins from different vendors.
The fastest and best solution is to rename the folder containing the plugin via FTP.
To do this, you need to log into your hosting account. Often, this will be an account from one of the following providers (in no particular order):
home.pl
ovh.pl
nazwa.pl
az.pl
smarthost.pl
1and1.pl
After logging in, we go to the file manager (FTP, WebFTP, FTP via WWW). This is the most difficult thing. Once we see the list of files on the server, we are already at the goal, and the page will most likely be repaired within a minute.
Then we go to the directories:
public_html->wp-content->plugins and look for the plugin that we recently installed. If we can't find it on the list, it probably uses a different name. The first option is to check the name based on the error that appears on the page. However, if this does not help, or our page does not display the error at all, we can look for the directory with the latest modification date. Once we have located the culprit, all we need to do is change the directory name, for example add '2' to the end of it. This should be enough to make our page work again.In my last post I wrote about CWV and why it will be a very important indicator for philippines phone number example positioning a website. In today's post I will try to present ways to optimize CWV.
Here, depending on what is our greatest content , we have to act differently.
Optimized for photos
Here, let's start by dividing the topic into a few sections.
Quite important elements are things like:
format, size and loading time of the photo.
Format
It is good to think about the format of our photos.
The two most popular currently are undoubtedly PNG and JPG.
PNG – the most commonly used format for transparent photos,
but for regular photos there are better formats than compression.
JPG – one of the most common formats due to its weight,
but it loses a lot of quality during compression.
Unfortunately, both of these formats have one more common flaw, they are raster graphics,
which means that when zooming in, we will lose more and more quality.
To eliminate these flaws, I encourage you to use WebP or SVG .
Currently, the only downside to WebP is that it is not yet supported
by all browsers , but it is really worth using.