phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './alexande/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 ('1b3c1262bb91aaa84d879b802e0b6b4c', -1, 1519282885, 1519282885, '36e22175', -10, 0, 0)

Line : 187
File : sessions.php