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 ('ab328ae3246f84e2dee0e9294484a179', -1, 1519460120, 1519460120, '365acab8', 0, 0, 0)

Line : 187
File : sessions.php