PHP Warning: Undefined array key

Here is another example of several rows one after the other:

[17-Sep-2023 00:13:43 UTC] PHP Warning:  Undefined array key "path" in /home/japaneseknives/public_html/wp-content/mu-plugins/plf-filter.php on line 1024
[17-Sep-2023 00:13:43 UTC] PHP Warning:  Undefined array key "path" in /home/japaneseknives/public_html/wp-content/mu-plugins/plf-filter.php on line 1024
[17-Sep-2023 00:13:44 UTC] PHP Warning:  Trying to access array offset on value of type bool in /home/japaneseknives/public_html/wp-content/mu-plugins/plf-filter.php on line 1024
[17-Sep-2023 00:13:44 UTC] PHP Warning:  Trying to access array offset on value of type bool in /home/japaneseknives/public_html/wp-content/mu-plugins/plf-filter.php on line 1024
[17-Sep-2023 00:13:45 UTC] PHP Warning:  Trying to access array offset on value of type bool in /home/japaneseknives/public_html/wp-content/mu-plugins/plf-filter.php on line 1024
[17-Sep-2023 00:13:45 UTC] PHP Warning:  Trying to access array offset on value of type bool in /home/japaneseknives/public_html/wp-content/mu-plugins/plf-filter.php on line 1024
[17-Sep-2023 00:13:47 UTC] PHP Warning:  Undefined array key "path" in /home/japaneseknives/public_html/wp-content/mu-plugins/plf-filter.php on line 1024
[17-Sep-2023 00:13:47 UTC] PHP Warning:  Undefined array key "path" in /home/japaneseknives/public_html/wp-content/mu-plugins/plf-filter.php on line 1024

Thank you for your report.

We have released the corrected version 4.0.16, so please try it.

Thank you, we will test.

Hello,

I’m afraid this issue is still not solved

[18-Oct-2023 08:21:15 UTC] PHP Warning:  Undefined array key "path" in /home/japaneseknives/public_html/wp-content/mu-plugins/plf-filter.php on line 1024
[18-Oct-2023 08:21:15 UTC] PHP Deprecated:  strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /home/japaneseknives/public_html/wp-content/mu-plugins/plf-filter.php on line 1024
[18-Oct-2023 08:21:15 UTC] PHP Warning:  Undefined array key "path" in /home/japaneseknives/public_html/wp-content/mu-plugins/plf-filter.php on line 1024

Can you help us resolve this?

Thank you

It seems that the must use plugin (Plugin Load Filter [plf-filter]) has not been updated.

The PLF plugin consists of two parts: a general plugin part and a must use plugin.

must use plugin (plugin load filter [plf-filter]) is automatically updated when the PLF settings screen is opened after a plugin update.

Make sure both plugins are ver 4.0.16

Do I have to manually update the file that is in the mu-plugins folder?

Normally, there is no need to update manually, but if you do not have permission to create files in the mu-plugins folder due to security measures, you may need to temporarily grant permission and update manually.