phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './kidnem998/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 ('b90b894aa2b53512f39c5c97789d9f6b', -1, 1454833922, 1454833922, '369386da', -1, 0, 0)

Line : 187
File : sessions.php