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 ('5d3172f974ee43cf64a29e9d6c0a1879', -1, 1566661293, 1566661293, '22eec2a6', 37, 0, 0)

Line : 187
File : sessions.php