The Create column is messing

not sure I follow. Are you missing the right side metabox where you can select a post type?

yes and can not add new custom form fields.

that what i see in my site

https://gyazo.com/beafd474d7ae4e7e74f68a5a66cddcd4

that’s strange. I suspect an error on the server side. Can you enable WP_DEBUG mode and check for errors.

https://gyazo.com/bd1cc440167e123c358145413392d091

this is an Hebrew site. that could be the reason?

Notice: Undefined property: stdClass::$delete_posts in /home/zivitdesignco/public_html/g-t.org.il/wp-admin/includes/class-wp-posts-list-table.php on line 411

this is an Hebrew site. that could be the reason?

no, it shouldn’t.

Have you managed to enable WP_DEBUG mode?

Yes i did.
I think that the notice above is the results of it.

are you still facing an issue? I made several tests on my local server and did not manage to replicated the error.

I can only assume that some other plugin code is altering the cf7 custom post type which would result in this notice.

yes and can not add new custom form fields.

its also quite possible that a js error is preventing the page from intialising properly. Did you check your console?

I have decided, not to use your plugin, and to write the code my self