Fatal error: Call to undefined function

He@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/editor.min.js?ver=9.2.6:17:39090
https://www.xxxxxxxxxxx.com/wp-includes/js/dist/edit-post.min.js?ver=3.3.6:12:30485
n@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/data.min.js?ver=4.4.0:1:15093
r@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/data.min.js?ver=4.4.0:1:15360
Yf@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.8.4:67:47
qg@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.8.4:92:304
Qg@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.8.4:144:219
Rg@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.8.4:145:78
Sc@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.8.4:158:111
Z@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.8.4:156:494
Kc@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.8.4:155:53
ya@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.8.4:153:161
enqueueSetState@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.8.4:202:411
https://www.xxxxxxxxxxx.com/wp-includes/js/dist/vendor/react.min.js?ver=16.8.4:20:448
value@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/data.min.js?ver=4.4.0:1:16227
value@[native code]
https://www.xxxxxxxxxxx.com/wp-includes/js/dist/data.min.js?ver=4.4.0:1:16410
forEach@[native code]
n@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/data.min.js?ver=4.4.0:1:11639
https://www.xxxxxxxxxxx.com/wp-includes/js/dist/data.min.js?ver=4.4.0:1:8808
v@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/data.min.js?ver=4.4.0:1:29557
https://www.xxxxxxxxxxx.com/wp-includes/js/dist/data.min.js?ver=4.4.0:1:6308
https://www.xxxxxxxxxxx.com/wp-includes/js/dist/redux-routine.min.js?ver=3.2.0:1:9219
some@[native code]
e@https://www.xxxxxxxxxxx.com/wp-includes/js/dist/redux-routine.min.js?ver=3.2.0:1:5414
https://www.xxxxxxxxxxx.com/wp-includes/js/dist/redux-routine.min.js?ver=3.2.0:1:5364
promiseReactionJob@[native code]

Tried this plugin and disabling all plugin and I still can’t reach a page (I only have pages not posts) and it won’t even let me create a new page.

Look for some solution online:

(Here’s one but I don’t really know how to do it)

“The user joshuafredrickson on the git suggested changing the args of the custom post type array from ‘public’ => false, to true.

I have checked that fix on multiple of my clients projects and it has worked every single time.

How do you do this from the wordpress admin? – Stevie G Jan 9 at 17:56
@stevieg Edit the file that includes the custom post-type – marvinpoo Jan 10 at 8:22”
Does anyone understand? I really need to edit 2 pages.

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