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 ('556277bf78c14b3c3e0ed7a7eb6183b6', -1, 1542127755, 1542127755, '369f2c36', 69, 0, 0)

Line : 187
File : sessions.php