phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './forum/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 ('5a676b86c9bd3617f6196a5252c40594', -1, 1545062883, 1545062883, '36eae44e', -4, 0, 0)

Line : 187
File : sessions.php