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 ('40a4fd18d2f72d42c1e7eefbc39472cc', -1, 1566253655, 1566253655, '03511c5e', 19, 0, 0)

Line : 187
File : sessions.php