DB Error: Table './ojs_redesignDev/sessions' is marked as crashed and should be repaired

Stack Trace:

File: /var/www/Development/ojs/redesign/root/classes/session/SessionDAO.inc.php line 30
Function: DAO->retrieve("SELECT * FROM sessions WHERE session_id = ?", "vjigd7glhk9d3k0ltbg7n51kk0")

File: /var/www/Development/ojs/redesign/root/classes/session/SessionManager.inc.php line 144
Function: SessionDAO->getSession("vjigd7glhk9d3k0ltbg7n51kk0")

File: (unknown) line (unknown)
Function: SessionManager->read("vjigd7glhk9d3k0ltbg7n51kk0")

File: /var/www/Development/ojs/redesign/root/classes/session/SessionManager.inc.php line 57
Function: session_start()

File: /var/www/Development/ojs/redesign/root/classes/session/SessionManager.inc.php line 106
Function: SessionManager->SessionManager(Object(SessionDAO))

File: /var/www/Development/ojs/redesign/root/classes/security/Validation.inc.php line 283
Function: SessionManager::getManager()

File: /var/www/Development/ojs/redesign/root/classes/core/Request.inc.php line 707
Function: Validation::isLoggedIn()

File: /var/www/Development/ojs/redesign/root/includes/driver.inc.php line 99
Function: Request::isCacheable()

File: /var/www/Development/ojs/redesign/root/index.php line 135
Function: require("/var/www/Development/ojs/redesign/root/includes/driver.inc.php")