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 ('5bdf2ed20447e6ce8a3a82ebd840c14e', -1, 1529638722, 1529638722, '36a68d0c', -4, 0, 0)

Line : 219
File : sessions.php