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 ('5dd2ed88f036f5b73ba488ca2716690d', -1, 1571409356, 1571409356, '03e3f9ea', 54, 0, 0)

Line : 187
File : sessions.php