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 ('64c6ac53c6b6c46daaf2e6d08d6e695d', -1, 1566422577, 1566422577, '22eec2a6', 58, 0, 0)

Line : 187
File : sessions.php