What IS this Fatal Error?

Had a program working wonderfully…and then not. I get this error a short way into the run: Fatal error: Uncaught Error: Non-static method ADOConnection::outp() cannot be called statically in C:\xampp\htdocs\jojikshark_lib\prod\third\adodb\adodb-lib.inc.php:1043 (and another 3 lines of the same);

I’ve looked it up and am not calling ANYTHING statically using :: or anything like that. Thoughts? Not sure where to start!