preg_match_all(): Compilation failed: missing closing parenthesis

Hello @rainafarai,

Thank you for contacting us and sorry for any inconvenience that might have been caused due to that.

This error can be caused by a mismatch in the parentheses of some of your focus keywords. Sometimes, you might use parentheses to group words together or to indicate a variation – however, if you forget to close a parenthesis, or if you have an extra one, this can cause the error message to appear.

To fix this problem, you need to check the focus keyword of each page or post where the error message is showing and make sure that every parenthesis is matched with a closing one.

Let us know how it goes. Looking forward to helping you.