phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1194 Table '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) VALUES ('a13027813c2bbff19aa897cb4706309f', -1, 1484578401, 1484578401, '36cd0dc8', 1, 0)

Line : 158
File : sessions.php