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 ('0dd9f2a0b3f59d3e60e157df0929d59d', -1, 1568533171, 1568533171, '12ce308e', 6, 0, 0)

Line : 187
File : sessions.php