PKP LN not working for GIAP journalsOJS3

Dear Team good morning
We noticed that after 2017 when we updated to OJS3, data not archive in PKPLN. I just saw our data is only available upto 2017.
Can you help us. Also Google scholar stopped indexing our journal content. P,ease help me.

Hi @GIAP_Journals1,

What specific version of OJS are you using? (Please include this in your posts.)

Have you installed the PKP PN plugin for OJS 3.x?

Regards,
Alec Smecher
Public Knowledge Project Team