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 ('e3d2b66b1f85a22e2a751a396918593b', -1, 1540328766, 1540328766, '36c60f14', -7, 0, 0)

Line : 187
File : sessions.php