phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './dhabih_i428php/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 ('591fc2e8d6b78b5c2bd861abbd0f4db4', -1, 1417167701, 1417167701, '36ccda5f', 5, 0, 0)

Line : 187
File : sessions.php