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 ('904907e8a6ba71fc5419300b8b987272', -1, 1524497867, 1524497867, '36c42f91', -7, 0, 0)

Line : 187
File : sessions.php