Problema com Database

(mysql): SELECT * FROM sessions WHERE session_id = ‘ahsaasfto1mfebq20ejbiu3jf7’
1146: Table ‘mysql.sessions’ doesn’t exist
ADOConnection._Execute(SELECT * FROM sessions WHERE session_id = ‘ahsaasfto1mfebq20ejbiu3jf7’) % line 1204, file: adodb.inc.php
ADOConnection.Execute(SELECT * FROM sessions WHERE session_id = ?, Array[1]) % line 100, file: DAO.inc.php
DAO.retrieve(SELECT * FROM sessions WHERE session_id = ?, Array[1]) % line 38, file: SessionDAO.inc.php
SessionDAO.getSession(ahsaasfto1mfebq20ejbiu3jf7) % line 168, file: SessionManager.inc.php
SessionManager.read(ahsaasfto1mfebq20ejbiu3jf7) % line 0, file:
DB Error: Table ‘mysql.sessions’ doesn’t exist
Stack Trace:
File: C:\wamp64\www\revista\lib\pkp\classes\session\SessionDAO.inc.php line 38
Function: DAO->retrieve(“SELECT * FROM sessions WHERE session_id = ?”, Array(1))

File: C:\wamp64\www\revista\lib\pkp\classes\session\SessionManager.inc.php line 168
Function: SessionDAO->getSession(“ahsaasfto1mfebq20ejbiu3jf7”)

File: (unknown) line (unknown)
Function: SessionManager->read(“ahsaasfto1mfebq20ejbiu3jf7”)

File: C:\wamp64\www\revista\lib\pkp\classes\session\SessionManager.inc.php line 58
Function: session_start()

File: C:\wamp64\www\revista\lib\pkp\classes\session\SessionManager.inc.php line 129
Function: SessionManager->__construct(Object(SessionDAO), Object(Request))

File: C:\wamp64\www\revista\lib\pkp\classes\security\Validation.inc.php line 366
Function: SessionManager::getManager()

File: C:\wamp64\www\revista\lib\pkp\classes\core\PKPPageRouter.inc.php line 67
Function: Validation::isLoggedIn()

File: C:\wamp64\www\revista\lib\pkp\classes\core\Dispatcher.inc.php line 117
Function: PKPPageRouter->isCacheable(Object(Request))

File: C:\wamp64\www\revista\lib\pkp\classes\core\PKPApplication.inc.php line 247
Function: Dispatcher->dispatch(Object(Request))

File: C:\wamp64\www\revista\index.php line 68
Function: PKPApplication->execute()