phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 144 Table './fourqane_fourqane/phpbb_sessions' is marked as crashed and last (automatic?) repair failed

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('25ae1f102ed54668cd392df075db71b7', -1, 1414735407, 1414735407, '36c55ef1', 2, 0)

Line : 158
File : sessions.php