Excerpt does not show in loop

Hello,
I get a page template with a loop of custom posts.
The excerpts of the posts do not show.
Instead I get the sting “To view the contents of this page, you must be authenticated and have the required access level.”
I try check/uncheck the Search Options in the plugin settings with no luck.

How to show the exceprts in loops?

Best wishes.

https://ww.wp.xz.cn/plugins/wordpress-access-control/