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 ('3f49e218bc45cd3758a9ac22bbfc4a9f', -1, 1568988876, 1568988876, '03e3fe0c', -4, 0, 0)

Line : 172
File : sessions.php