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 ('427de2da9c1be17dd0782a6d0d63d64e', -1, 1574166335, 1574166335, '23af78ae', 36, 0, 0)

Line : 187
File : sessions.php