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 ('250243c90e0753c9dfbb6453e46d5c6f', -1, 1438503149, 1438503149, 'b95de50a', -1, 0, 0)

Line : 187
File : sessions.php