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 ('b8b6a313c6f7a04a985d3baf44f5ba6d', -1, 1571397197, 1571397197, '03e418c0', 12, 0, 0)

Line : 187
File : sessions.php