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 ('a58b6b1e7c36ac537d0f6a49a61e9c95', -1, 1519480758, 1519480758, '36e33093', 4, 0, 0)

Line : 187
File : sessions.php