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 ('25c2d02dd92f4e993b77e3f2c504dfa9', -1, 1566704915, 1566704915, '03511c5e', 3, 0, 0)

Line : 187
File : sessions.php