phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1114 The table 'phpbb_sessions' is full

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('df0add53893b7834f934d8cfb67a4b79', -1, 1573567245, 1573567245, '12d0ba13', 28, 0, 0)

Line : 187
File : sessions.php