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 ('c2e5a9fd14d4db46a66d226d5f2c909d', -1, 1566459081, 1566459081, '03511c5e', 69, 0, 0)

Line : 187
File : sessions.php