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 ('511f0f28e7e8203a60c18e6807ac252f', -1, 1566093581, 1566093581, '12ce0d27', 38, 0, 0)

Line : 187
File : sessions.php