WampServer

Hey guys ,
Wish you all being fine ...
I got a problem with my phpmyadmin page !
when i was trying to open phpmyadmin it gave me an error like this :

The mysqli extension is missing. Please check your PHP configuration. <a href="Documentation.html#faqmysql" target="documentation"><img class="icon" src="./themes/pmahomme/img/b_help.png" width="11" height="11" alt="Documentation" title="Documentation" /></a>
i have checked even the config file but everything was ok ... anyway
Can you just help me to solve this problem !
Thanks a ton in advance