phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './NPSiteDB/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 ('5a31ebacbbe292d95046422cf5c5eec4', -1, 1481463689, 1481463689, '36cd59c7', 0, 0, 0)

Line : 189
File : sessions.php