What is the meaning of: +QODM: "FUMO", Report Failed

EC21
Custom board
After using AT+GPS=1
I get the URC: +QODM: “FUMO”, Report Failed

Where is this documented?
I have a bunch of PDF files for the EC21 but I can’t search all of them at once.
Do you have a web page that I can search for commands, responses, and URC messages?
What does it mean?

Thanks,
Bruce Graham
Senior Software Engineer
TechnoSoft Innovations, Inc.
bgraham@technosofteng.com

Dear Sir,
I think your command may be wrong. We currently do not have the web page you mentioned. Please refer to the document “Quectel_EC25&EC21_GNSS_AT_Commands_Manual” for your question.You can download it from our website: https://www.quectel.com/support/downloadb/TechnicalDocuments.htm?keys=EC21_GNSS_AT_Commands

I did not find QODM in the docs.
I guess that there is a command like AT+QODM that would produce a URC.
I do not use a QODM command, so why is the EC21 sending the QODM URC?

Thanks,
Bruce Graham