phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './amcqfmxp_phpbb1/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 ('26432fcce6b0e43d713bc0e707a200cc', -1, 1436023024, 1436023024, '36a6e02e', 5, 0, 0)

Line : 187
File : sessions.php