phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './twisty_phpb1/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 ('9051a9c1bd6f943835937b08d4235ba3', -1, 1513616304, 1513616304, '36a72c20', 5, 0, 0)

Line : 187
File : sessions.php