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 ('90eefdc89b1d031c4a5cca7b99b418b8', -1, 1516467046, 1516467046, '36ea0002', 10, 0, 0)

Line : 187
File : sessions.php