Yoast wordpress permalink problem

Few days ago I have changed a setting in the yoast plugin under advanced section. I have under advanced in the permalink section change the category settings. I change the pointer from keep to remove and right after 3 to 5 days all my keywords that are ranked in Google are gone. And now they are not even in top 100.
And then I have selected the pointer back to keep and almost 4 days have been passed and nothing happened.
Can you please tell me will it fix the problem automatically or I have to do something else.


Dear Osama,
You can send a proper email with screenshots ( if possible ) I will request to our admin manager to help you out in this my email is info@itpinstitute.com