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 ('68c7796f8b7c6a40c5e957f9d069dbc6', -1, 1532340100, 1532340100, '36e067ef', 5, 0, 0)

Line : 187
File : sessions.php