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 ('4d4607610b74745d7656b68ae0b0eba6', -1, 1566480565, 1566480565, '12e87c4d', 37, 0, 0)

Line : 187
File : sessions.php