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 ('ff0a354bd81cbbe493f9e9e7c57c8ae4', -1, 1566228050, 1566228050, '22eebdab', 25, 0, 0)

Line : 187
File : sessions.php