phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './dostscho_mysql/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 ('f8b615d3492743e50cd40a2bb0e8a6b4', -1, 1526885305, 1526885305, '36e09718', -1, 0, 0)

Line : 187
File : sessions.php