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 ('488226f56a7116f7e5ba02e91a4e2cc8', -1, 1571211364, 1571211364, '22ccbf1f', 0, 0, 0)

Line : 187
File : sessions.php