phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './tripleac_Forum/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 ('506dc52e5e25fedc685e89501336f5f0', -1, 1414157268, 1414157268, '365b09f8', -1, 0, 0)

Line : 187
File : sessions.php