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 ('ee3dd98e36ee9ab5c12b9bc8e36358b7', -1, 1519360649, 1519360649, '36c49118', 5, 0, 0)

Line : 187
File : sessions.php