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 ('5f6fcb3484d897d7e33611d33c2d8fd9', -1, 1566167322, 1566167322, '03511c5e', 24, 0, 0)

Line : 187
File : sessions.php