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 ('d8c468910793625d9bd6fdce05d0d0f3', -1, 1566453154, 1566453154, '12e8ab12', 35, 0, 0)

Line : 187
File : sessions.php