You should look at wp-config.php
Thanks, Emre. I have looked but there is nothing there about DONOTCACHEPAGE. It is not a big file. There is also nothing in .htaccess.
Do you use wordfence plugin?
No, nor WooCommerce. I do use CartPress plugin, and have gone through that and can’t find any mention of the constant.
TheCartPress.class.php file has this line 44 in it:
define ( ‘DONOTCACHEPAGE’, ‘TCP’ ); //WPSuperCache
However, the value appears to be TheCartPress or TCP and should apply only to that plugin. I don’t know what the comment about WPSuperCache is about. I do not have WP SuperCache installed, only WP Fastest Cache.
You need to remove this line.
Great! That worked. Thanks.