I testing Falcon Engine Cache and after active show this error
An error occurred
You need to enable Permalinks for your site to use Falcon Engine. You can enable Permalinks in WordPress by going to the Settings - Permalinks menu and enabling it there. Permalinks change your site URL structure from something that looks like /p=123 to pretty URLs like /my-new-post-today/ that are generally more search engine friendly.
I am no want change my Wordpres default links