Weird Error Message

Hello,

I love Disable Gutenberg, and have installed it successfully on several web sites. Thanks so much for making this great plugin available.

Today, I installed it on a web site…everything went smoothly,until I noticed at the bottom of some pages there was this notice in bold type:

https://steveworking.intellixdigital.com
Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘disable_gutenberg_get_edit_post_link’ not found or invalid function name in /home/siriusin/public_html/steveworking/wp-includes/class-wp-hook.php on line 288

Here’s another one:
https://wpsidebars.com/tosstestsomething/
Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘disable_gutenberg_get_edit_post_link’ not found or invalid function name in /home/siriusin/public_html/wpsidebars.com/wp-includes/class-wp-hook.php on line 288

Also similar warning on https://thewpedge.com

I did some googling, but don’t see anything specific to Disable Gutenberg, and I’m not a coding expert, so not sure what to do.

On the steveworking.intellixdigital.com site I tested deactivating various plugins (only have about 10 plugins on the site), and even after I deactivated all the plugins (other than Disable Gutenberg) the problem warning was still there.

Please help so I can use your great plugin…thank you.

The page I need help with: [log in to see the link]