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 ('8ebd2af6a6a02c1a0572d8d4e99c0710', -1, 1566143750, 1566143750, '03e2fbcd', 35, 0, 0)

Line : 187
File : sessions.php