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 ('7d9491e167992d2cf13e0a4868819afd', -1, 1566781964, 1566781964, '22ec2692', 15, 0, 0)

Line : 187
File : sessions.php