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 ('c5c1c1a790230c4e986b5418dd68cede', -1, 1558844214, 1558844214, '369d3d44', -2, 0, 0)

Line : 189
File : sessions.php