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 ('11a3854e7412c8c2f8a4dccb819ae05f', -1, 1526809826, 1526809826, '36e06c55', 0, 0, 0)

Line : 187
File : sessions.php