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 ('d18cc3c89b7973ee0c547401c7d9155a', -1, 1566382208, 1566382208, '03e2fb51', 56, 0, 0)

Line : 187
File : sessions.php