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 ('a8620aa9c6b8bbf0b0e822360e0f08d9', -1, 1537573020, 1537573020, '36c6cd99', 27, 0, 0)

Line : 187
File : sessions.php