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 ('ba2f6f7f95da619d9c7baf4588eb808a', -1, 1568877699, 1568877699, '22ccc2be', 15, 0, 0)

Line : 189
File : sessions.php