phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table '.\phpbb2\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 ('1c7ac17898a8aef6e8b42968e8651a98', -1, 1490596718, 1490596718, '36d37f59', 0, 0, 0)

Line : 187
File : sessions.php