phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './lg15_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 ('7851dd56c964268e1bde1c563bbef683', -1, 1768575628, 1768575628, 'd849d859', 120, 0, 0)

Line : 187
File : sessions.php