Hi,
Here it is only in English.
You have uninstalled Wampserver, so you have also deleted your databases and your Wordpress can not work without its database. There is no way to recover this database unless you had backed it up before.
When uninstalling wampserver, it is well indicated :
WARNING: The Wampserver installation folder will be completely deleted: the local sites and databases located in this folder will be destroyed if you have not previously backed them up.
Do you really want to uninstall Wampserver?
---------------------------------------------------------------
Documentation Apache -
Documentation PHP -
Documentation MySQL -
Wampserver install files & addons