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 ('e6a9c4cb0aaac5479e0b0b26ec7234ea', -1, 1519289323, 1519289323, '36a33599', -1, 0, 0)

Line : 187
File : sessions.php