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 ('9da1dd9b551ef008a8b72f1caa17cb55', -1, 1537698720, 1537698720, '36a20f1f', -4, 0, 0)

Line : 187
File : sessions.php