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 ('d7e8b7555c0d81d7214df69f61e50c92', -1, 1566701742, 1566701742, '03511c5e', 55, 0, 0)

Line : 187
File : sessions.php