guys I solved the problem. If anyone has the same problem as mine (fatal or serious problem error) just do the following operation ??
First go to your PHPmyadmin and select your data base. then find these 3 tables wp_statistis_visits, wp_statistics_useronline, wp_statistics_visitors. select them and then empty their content.
I did this but all my information and visits have deleted unfortunately. You can take backup from the table’s contents so you will able back them if it’s necessary (I didn’t take backup). Hope it will be useful
