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 ('47f3dc8e90db39b87eb8f2ca4e51eab0', -1, 1414840521, 1414840521, '36c4775d', 4, 0, 0)

Line : 187
File : sessions.php