phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './socal_phpbb/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c952b9817acd696e3b5868262ec7f7e7', -1, 1438145314, 1438145314, 'b95de50a', -1, 0, 0)

Line : 187
File : sessions.php