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 ('bf69fbb30b07bbf5f94855802e01fcf3', -1, 1568877587, 1568877587, '22ccc2be', 15, 0, 0)

Line : 189
File : sessions.php