I am seeing this in the website error log every few minutes:

[08-Nov-2021 16:10:05 UTC] PHP Warning:  Creating default object from empty value in /home/midadmin/public_html/wp-content/plugins/dentalpress-options/framework/inc/class.redux_filesystem.php on line 28
[08-Nov-2021 16:10:05 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/operations.class.php on line 2758
[08-Nov-2021 16:10:05 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/operations.class.php on line 2762
[08-Nov-2021 16:10:05 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/output.class.php on line 3684
[08-Nov-2021 16:10:06 UTC] PHP Warning:  Creating default object from empty value in /home/midadmin/public_html/wp-content/plugins/dentalpress-options/framework/inc/class.redux_filesystem.php on line 28
[08-Nov-2021 16:10:07 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/operations.class.php on line 2758
[08-Nov-2021 16:10:07 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/operations.class.php on line 2762
[08-Nov-2021 16:10:07 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/output.class.php on line 3684
[08-Nov-2021 16:11:14 UTC] PHP Warning:  Creating default object from empty value in /home/midadmin/public_html/wp-content/plugins/dentalpress-options/framework/inc/class.redux_filesystem.php on line 28
[08-Nov-2021 16:11:14 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/operations.class.php on line 2758
[08-Nov-2021 16:11:14 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/operations.class.php on line 2762
[08-Nov-2021 16:11:14 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/output.class.php on line 3684
[08-Nov-2021 16:12:17 UTC] PHP Warning:  Creating default object from empty value in /home/midadmin/public_html/wp-content/plugins/dentalpress-options/framework/inc/class.redux_filesystem.php on line 28
[08-Nov-2021 16:12:17 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/operations.class.php on line 2758
[08-Nov-2021 16:12:17 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/operations.class.php on line 2762
[08-Nov-2021 16:12:17 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/output.class.php on line 3684
[08-Nov-2021 16:14:50 UTC] PHP Warning:  Creating default object from empty value in /home/midadmin/public_html/wp-content/plugins/dentalpress-options/framework/inc/class.redux_filesystem.php on line 28
[08-Nov-2021 16:14:50 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/operations.class.php on line 2758
[08-Nov-2021 16:14:50 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/operations.class.php on line 2762
[08-Nov-2021 16:14:50 UTC] PHP Warning:  "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /home/midadmin/public_html/wp-content/plugins/revslider/includes/output.class.php on line 3684

From what I'm reading, it's a Composer issue and PHP.  The site is running on PHP 7.4.

Please advise.

I finally uploaded your version of SliderRev and the warning is gone.  

But now I'm seeing this warning every few seconds in the error log in wp-admin:

03-Dec-2021 20:01:20 UTC] PHP Warning: Creating default object from empty value in /home/midadmin/public_html/wp-content/plugins/dentalpress-options/framework/inc/class.redux_filesystem.php on line 28

Please advice.

Anything?

It is still happening several times a minute, see below example.  

I installed WP File Manager for you in the WordPress Admin.  With the WP dashboard admin login I made for you (see below), please go to WP File Manager and check the error log in wp-admin and not in the site root.  I.e. public_html/wp-admin/error_log 

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[13-Feb-2022 12:00:25 UTC] PHP Warning: Creating default object from empty value in /home/midadmin/public_html/wp-content/plugins/dentalpress-options/framework/inc/class.redux_filesystem.php on line 28