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 ('a41b8a8e0b05e42b3d27766cc2f8c0e4', -1, 1566378577, 1566378577, '03e2fb51', 20, 0, 0)

Line : 187
File : sessions.php